#geometry-and-trigonometry

1 messages · Page 111 of 1

crystal gust
#

guys how do i do dis help pls

grave pond
#

It doesn't make sense as written.
It says the heading from B to the fire is NW (which would be in the exact same direction that B sees A!), but the diagram shows it in the direction 60° left of north -- that is, 15° left of NW.
Similiarly, the text says that A sees the fire in direction NE, but the diagram claims it's 50°, which is five degrees to the right of NE.

lime mesa
#

can somebody help me with my maths assesment. Its on proving continuity and smoothness

ruby dune
#

hey folks, i need a little help with parametric equations in desmos. i've made the functions, and they do in fact trace the desired shape (an equilateral triangle with side lengths 2) yet typing in the functions of t does not produce the desired shape, and instead bounces around within a rectangle

dark sparrow
#

like what you are typing and what the expected vs actual output is

ruby dune
#

sure, uh would you be able to vc momentarily?

dark sparrow
#

no sorry

ruby dune
#

that's all good

ruby dune
#

@worn gorge

ruby dune
#

🫩🙏

fast forge
#

We call that lissajou curves and these are parametric curves

frosty sandal
#

hey guyss!!~~

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im in grade 7 but i want to study higher level geometry for future plans. can anyone suggest where and which topic should i start from?

hollow lily
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Wym by higher level geometry

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Euclidean? Coordinate? maybe Space

frosty sandal
#

i mean secondary and higher secondary level

frosty sandal
hollow lily
# frosty sandal both

I would suggest starting with triangles, orthocenter, centroid, midpoints and other properties related to triangles

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Then move to circle

frosty sandal
#

i already did those

hollow lily
#

Oh

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hmmcat kid these day so efficient, okay try circle then

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Learn some theorems about circle

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I have no idea what their name are but I guess you could find some in youtube

frosty sandal
#

kk thanks 🙂

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and i have hell of a problem in coordinates. how do i improve

hollow lily
frosty sandal
#

whats that?

hollow lily
#

Coordinate related to algebra so if you have strong algebra skill that would be helpful

frosty sandal
#

hey im pretty shitty in algebra😅

hollow lily
#

And also about euclidean geo skill, you'll need that to simplify the problem

frosty sandal
#

i have ig problem in functions,and mathematical induction

hollow lily
#

ehh

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Probably you'll need algebra and euclidean geo skill for coordinate geo

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that's it

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hmmcat But people usually overlook euclidean geo

frosty sandal
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im pro in euclidean geo😎

hollow lily
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If you said so

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Euclidean geo is endless and also can get crazy complex

frosty sandal
hollow lily
#

Not many people are that confident to say they're professional

frosty sandal
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im saying cuz i fing geo a lot easier to solve and understand than algebra

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and i really wanna attend some int. competitions

hollow lily
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It's difficult when it's difficult cat_bread

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I feel the same for both

frosty sandal
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idk i feel like geo is for me

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i usually fall asleep during algebra lectures lol

hollow lily
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This would be the least nasty thing you would see if you're in competition

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hmmcat So get yourself ready

frosty sandal
#

ooof the fig looks like its gonna scramble my brain but whats the question?

hollow lily
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Couldn't find it lol

frosty sandal
#

is it related to the above pic?

hollow lily
frosty sandal
#

kk wait

amber wolf
#

did i get ts correct 😭

grave pond
naive grove
toxic niche
#

Hey uh quick question, why do teachers feel the need to NOT put the notes for any subject (physics) online???

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Because Physics is quite frustrating at times.

wintry cloud
toxic niche
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I hate when they change the grading scale for stuff.

shut thorn
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question.

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AB and AC ar two chords of a circle of radius r such that AB = 2AC. if p and q are the distances of AB and AC from the center of the circle then prove that 4q² = p² + 3r²

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How the hell do i do it

round granite
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Hello, can you help me understand this problem, please 🥺 ? I calculated the diagonal in the worst-case position and got sqrt of 48. I now know it's the correct answer, but I don't understand why that's the case.

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Like how I can proof that it's maximum

hollow lily
hollow lily
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My mistake

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So the largest distance between 2 points is AC, the diagonal that makes it the worst position

round granite
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Okay I think I get it, thanks

rose ibex
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someone help me with this please

obsidian harness
hollow lily
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I wonder what are the way to do that problem only using area

obsidian harness
#

(I recognise it from some IGCSE textbook)

hollow lily
obsidian harness
#

same exact question

hollow lily
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I'm asking my UK friend to do the problem rn

hollow lily
obsidian harness
shut thorn
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What if you try to subtract the area of the top left corner from the area 100 - 20π?

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Wait what. 2 pi?
No wait it should be 20pi.

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Yeah 20 pi.

grave pond
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You'd also need to subtract the two small "triangular" areas along the edges.

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Definitely possible, but I expect the result to be an ugly mess of square roots and arctangents either way.

obsidian harness
#

yeah the answer is ugly

strange pond
obsidian harness
#

you can get a start by labelling the centre of the circle, one of the intersections, and the bottom-right corner

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if you think, you can figure out all 3 side lengths and hence use the cosine rule for the angles

grave pond
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My gut feeling is that the least painful way to get through is probably to view the shaded area as a difference between two circular segments, once you have the angles.

strange pond
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yeah i probably wouldnt be able to figure out any elegant way to do it

i would just bash calculus at it by integrating the small circle equation and subtracting that with the integral of the quarter-circle equation to find the one of the two small areas at the sides

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if this comes out for an exam im cooked

obsidian harness
#

from a textbook

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basically someone watched too much Prosh Toadwalker on YT

strange pond
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although i havent read it yet just looked at the length of it

obsidian harness
rose ibex
# obsidian harness what have you tried?

I found the the distance from the corner of the square to the centre. Which is 10√2/2 = 5√2. Then you have to draw to isosceles triangles. Then use the cosine rule to find the angle of the triangle but I know it because I study extra but like people in my class don't + we didnt study trig yet so...

rose ibex
dry bolt
#

bro im so lost can someone help me i have tried so many times but i still struggling with understanding

whole flame
#

??

whole flame
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100-78.5

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21.5 sq cm

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Which grade is it

hollow lily
hollow lily
fresh birch
rose ibex
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wrong

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the ans key says 14.6

fresh birch
whole flame
#

Didn't see where the whole blue part was

whole flame
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I didn't see what the blue part was covering

spark ingot
#

Given a circle and points A, B, and C on it, which do not form an isosceles triangle. For every point P not in the set {A, B, C} on the circle, let A_P, B_P, and C_P denote the intersection points of the tangent at P with the tangents at A, B, and C, respectively.Prove that there are exactly three points P not in the set {A, B, C} on the circle such that the points A_P, B_P, C_P exist, and the perpendiculars erected from A_P to the line segment BC, from B_P to the line segment CA, and from C_P to the line segment AB are concurrent (meet at a single point).Furthermore, show that these three points P form an equilateral triangle

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Pls help me

lime crownBOT
hollow lily
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No one gonna help a geo problem

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If you don't provide a diagram

modest wing
#

what, sort of, fun geometry questions can one come up with? I'm starting to realize how boring my knowledges of it are, now that I'm creating questions for the pop quiz

I'm not talking about the regular "solve this, solve that" type questions but more focused on theory. an example of mine: "Pythagorean Theorem is a special case of Law of ... rule."

ivory juniper
#

Sines?

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Or cosines?

ripe trench
ancient edge
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I'm so bad at trig it hurts

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If I quizzed myself id get like 0% lol, mostly because I can't memorize the unit circle to save my life

restive halo
#

Now don’t say that

rain plaza
shut thorn
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i can try help but it would mostr likely be wrong

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so look.
First we calculate the number of rows and columns.

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(a row is the grid of triangles you see)

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which are connected to each other by edges.

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the ones marked in blue is the length of the row and the ones in red are the columns.

forest dew
#

😭

shut thorn
#

here the rows are 9 and columns are 5.
And since the longest distance to the shaded tirangle is the length of red and blue

shut thorn
forest dew
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these shi ill see in a 2 years lol

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Im 7th so grade

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we see rational shit

shut thorn
#

im 7th so grade

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😭

forest dew
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dude

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oops

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7th grade i a

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i am

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wait

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i think i broke english

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accidentaly

shut thorn
#

no that is going in my screenshots

forest dew
#

wh

shut thorn
shut thorn
forest dew
#

alr

shut thorn
forest dew
#

W english

shut thorn
forest dew
#

if my english teacher saw that she would made me a half piece

shut thorn
forest dew
#

also

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as an 13 age

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I love

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Geometics

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geometrics*

shut thorn
forest dew
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tbh geometry is easiest shit

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you just think and find a solution

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I love math in general too

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but i dont help people her

shut thorn
#

like ill learn the basics of every mathematics i come across but not touch history until its exam time 💔

forest dew
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cuz we didnt saw square root or stupid symbols

forest dew
#

social*

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they will change name soon

shut thorn
forest dew
#

social

shut thorn
#

scoail

forest dew
#

social

shut thorn
#

scoail

forest dew
#

best screenshot i took

shut thorn
forest dew
#

sure

shut thorn
#

a birck.
With a sniper scope

forest dew
#

wow

shut thorn
forest dew
#

yes

broken swan
#

can anyone pls help me

rain plaza
#

junior

nimble hearth
broken swan
#

most dead server ever

nimble hearth
real sentinel
real sentinel
#

Of triangle

rigid shore
#

(sin^x)(y)=(sin(y))^x right?

obsidian harness
somber coyoteBOT
obsidian harness
#

so for any positive integer x

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(think to yourself: what does $\sin^{-1}$ mean?)

somber coyoteBOT
knotty quiver
#

,texsp||$\arcsin$||

somber coyoteBOT
real sentinel
#

<@&268886789983436800>

edgy seal
#

@forest dew @old raft don't shit post in this channel

old raft
#

ok

hollow lily
#

-# I've just found this interesting problem, so I sent it here for anyone wants to try

somber coyoteBOT
#

Fionna The Unemployed

knotty quiver
#

💀

upper echo
hollow lily
#

Tbh Im not even sure how to explain that's the shortest

hollow lily
knotty quiver
#

ok i missed to consider that the arc length may be shorter than if you would let the tangent lines intersect

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so yea, the derivative is involved when you differentiate the circle equation to find the tangent line

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i rely on derivative so much, idk if there's pure geometry to find the tangent of a circle. I'm sure there is since i remember learning a formula for it

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ig any geometry formulas can be derived with calculus anyway

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it's very tedious

hollow lily
#

Yes

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Distance formula

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$\frac{ |ax_0 + by_0 +c|}{\sqrt{a^2+b^2}}=R$

somber coyoteBOT
#

Fionna The Unemployed

hollow lily
#

If the distance between that line and the center is equal R then it's a tangent

knotty quiver
#

oh

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oh makes sense

smoky hedge
#

=)))

short geyser
true chasm
#

hello guys im having trouble with this

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loki a little confusing

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my answer was x+3, y+-3

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if someone is on can they help?

neon frigate
#

Seems like you want to check where your points end up after the reflection

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If it reflects over the x axis that means the points go as follows

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A'(-5,-2), B'(-4,-4), C'(-2,-4), D'(-1,-2) (Before translating)

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After that

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I'd check one of the points and then see what I'd do to it to get it where it needs to be

neon frigate
nimble hearth
neat wigeon
ember hull
#

hi there's this solid geometry/mensuration question could anyone of you help me I'm very confused😭

neat wigeon
#

less time waste

ember hull
ember hull
neat wigeon
wise sparrow
exotic yarrow
#

so chords AB and BC both have length a

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Further hint: ||vertical angles||

wise sparrow
ember hull
#

48

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and edges are around 72

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I solved

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it

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😭😭😭

#

I didn't even realise

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I'm so dumb I was raw dogging the entire ques without reading it😭😭😭😭

neat wigeon
#

w

shell fiber
#

elp guys
Ive read AOPS part on ellipse but I wanted to read more high level content... like line with ellipse and other juicy stuff... but other books dont teach stuff on problem solving they;re just slapping me with proofs... I get it that proofs are super important but I also wanna know the stuff intuitively...
Any help, even a lil bit is helpful
are there books for students trying to learn for engineering college and involves all of algebra, precalc, counting and calc necesarry in advanced levels? like super advanced and gives intuitive understanding like aops does?

🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥

clear citrus
#

whats the big ol flattened coloured shape pls

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nvm I got it! rhombicosidodecahedron

wintry cloud
#

I fear I won't pass my geometry summative next week guys 😬

dark sparrow
forest dew
clear citrus
#

you betcha

clear citrus
#

what about this one fellas?

ruby granite
#

5

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its probbably not but 5]

short geyser
strange pond
pearl osprey
#

pls help find the minimum integer for fc

#

I know option b is the correct but simply i find the process overwhelming

lime crownBOT
#
What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above
exotic yarrow
somber coyoteBOT
#

Civil Service Pigeon

smoky lodge
#

I don't understand how to solve this question

stark spear
#

peculiar question but seems like youre just supposed to prove or disprove the equivalence and plug in the values for n and m you get from 78 and 18 in the process

obsidian harness
# smoky lodge

what have you tried? have you tried converting everything to sin and cos?

obsidian harness
smoky lodge
#

I've tried using the tan A+B formula

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But it's not getting any int result

obsidian harness
#

you can get to $\frac{3\left(\sin18\right)\left(\sin78\right)+\left(\cos78\right)\left(\cos18\right)}{\sin\left(94\right)}$ so that's the denominator sorted

somber coyoteBOT
stark spear
#

a similar example would be like prove cos(90)=2cos²(n)-1 and find the value of n

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the question is very strangely formulated

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but i think thats it

obsidian harness
#

I fail to see how cos(90)=2cos²(n)-1 would be similar in any way

stark spear
#

the answer would be n=45 in this case

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if u do the identities with the given values ull get an expression where n and m are some values and those are what youre supposed to multiply

smoky lodge
obsidian harness
#

just want to check what you meant by 'n = 45 in this case'

stark spear
#

i can give it a try in a bit

smoky lodge
stark spear
#

if no progress has been made

smoky lodge
#

I'm getting this

obsidian harness
#

I've figured the whole question out btw

#

and yeah I made an arithmetic error, should be sin(96) ofc

smoky lodge
#

Am I supposed to be getting this?

obsidian harness
#

no, should be $\frac{\cos 60 - \cos 96 + \cos 60}{\sin 96}$

somber coyoteBOT
smoky lodge
#

Ohh mb I mixed up the formulas

#

Yeah I got that

obsidian harness
#

yep and remember the form of the answer is $\frac{\tan n + \sin m}{\cos m}$

somber coyoteBOT
smoky lodge
#

On using sin a+b and cos a+B, I'm getting this. So can we assume the m and n can be either 60 or 36 as those are the only 2 values of angles?? In that case the product would be 2160

obsidian harness
obsidian harness
smoky lodge
#

Okayy

obsidian harness
#

you want to convert sin(96) to cos of another angle

smoky lodge
#

That would be -(cos6)

#

Right

#

?

obsidian harness
#

but then cos(-6) = cos(6)

smoky lodge
#

Ohh ok

obsidian harness
#

and then same thing for cos(96); can you convert that to sin(something)?

#

well, -1 * sin(something) actually

smoky lodge
#

Sin 6??

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Or is it sin(-6)

obsidian harness
#

sin(-6) = -sin(6)

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the identity is cos(x) = sin(90 - x), sin(x) = cos(90 - x)

smoky lodge
#

Yeahh got it

obsidian harness
#

and then that also implies tan n = 1

smoky lodge
#

So n is 45 then

obsidian harness
stark spear
#

oh thats what u meant

#

didnt have time to do the problem rn but that was a funny coincidence

obsidian harness
#

you made me think you solved the problem already

smoky lodge
#

Is m=6 then?

obsidian harness
obsidian harness
somber coyoteBOT
smoky lodge
#

Yeahh thank youuu

obsidian harness
worldly zephyr
#

Someone please help me with 10th question

spiral lodge
worldly zephyr
#

I did that but don't know what to do from there

obsidian harness
worldly zephyr
#

sin(2x+x) = sin(x)•cos(2x) + sin(2x)•cos(x)

obsidian harness
#

that's not what the formula for sin(a + b) is

#

you mixed up a, b

worldly zephyr
#

My bad

obsidian harness
#

that's okay!

worldly zephyr
#

I wrote it correctly in my notebook though

obsidian harness
#

cool, so if you now use the formulae for cos(2x) and sin(2x)

#

that's correct now yes

worldly zephyr
#

So I substitute them?

obsidian harness
obsidian harness
worldly zephyr
#

I tried doing all that but got
3sin(x)•cos(2x)

obsidian harness
worldly zephyr
#

I substituted the sin(2x) and cos(2x) formulas, got till
3(sin(x)cos²(x)) - sin³x

#

And then took sin common

obsidian harness
#

are you sure you're using the right formuals

#

you should get $\sin(x) (2 \cos^2 x - 1) + (2 \sin x \cos x)(\cos x)$

somber coyoteBOT
worldly zephyr
#

I'll try solving it again just to make sure

#

Be back in 5 mins

worldly zephyr
#

I got 3 sin(x) cos²x - sin³x

obsidian harness
#

you can stop there, but if you now use cos^2 x = 1 - sin^2 x

#

you can get a neat formula for sin(3x)

worldly zephyr
#

I took sin common, and got
sin(x)(3 cos²x - sin² x)

obsidian harness
#

only cos^2 x - sin^2 x = cos 2x is

worldly zephyr
#

?

obsidian harness
#

you can't simplify 3 cos^2 x - sin^2 x

worldly zephyr
obsidian harness
#

if you don't show your work it's hard to check

worldly zephyr
#

My work in notebook is a jumbled up mess so I'll try to type all of it here

#

sin(2x + x) = sin(2x)•cos(x) + sin(x)•cos(2x)
sin(3x) = (2•sin(x)•cos(x))cos(x) + sin(x)(cos²x - sin²x)
sin(3x) = 2 sin(x) cos²(x) + cos²x sin(x) - sin³x
sin(3x) = 3 sin(x)cos²(x) - sin³x
taking sin common on the right side
sin(3x) = sin(x)(3 cos²x - sin²x)

#

Correct?

obsidian harness
#

yes, that's correct

worldly zephyr
#

Tysm

obsidian harness
#

no worries!

brisk flame
#

Hello, I am peruvian, sorry for my bad english

subtle drift
#

anybody got (probably) the best trig cheat sheet? i imagine it's just some MASSIVE pdf with hundreds of identities or something idk

subtle drift
golden violet
#

I guess this would be helpful.

#

Note : this sheet includes the most essential ones!

lusty walrus
#

Probably not a pre-university topic, but there's no "university geometry and trigonometry" channel, so:

What's the angular diameter of something at distance = 0? Is it just the diameter of the object?

#

Or is it infinity

grave pond
#

Sounds like that would be very context and purpose dependent.

lusty walrus
#

I'm trying to make one sphere at a different distance from another sphere appear the same size as the other

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So I figured I'd do that by finding what radius would make their angular diameters the same

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I can manipulate the radius of one of the spheres

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But now I'm having to store the current radius of the resizable one, the original radius of the resizable one, and the last distance from the observer

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I'm trying to get it to be an equation based solely on the new distance and the original radius

grave pond
#

I would tend to say "angular diameter" is a concept that stops making sense as the distance approaches 0.
If you're thinking about camera perspective, when the distance becomes small compared to the scale of the object itself, its image gets more and more distorted, such that how it looks is not just a matter of scaling a common picture to the right size.

lusty walrus
#

Yeah

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Got that last bit wrong it's r1*d2/d1

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But then you get here and it's like

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This is for like a space game, instead of actually placing the moon like millions of miles away I place it one mile away but really small

cunning lion
#

it wouldn't really make sense for the distance away from the center spherical object to be less than the radius of that object

lusty walrus
#

But the "fake moon" needs to change size based on the observer's distance to where it should be

cunning lion
#

otherwise you'd be inside the object and need some other calculations for how that works

lusty walrus
#

I mean I kinda figured that when I had to divide by zero lol

cunning lion
#

it's also apparent from the fact that the domain of arcsin is ≤ 1, i.e. dist ≥ d/2

#

at a distance exactly equal to the radius of the sphere, the formula predicts an angular diameter of 180, which is the entire forward vision

lusty walrus
#

I just feel like there's gotta be a way to make it where you only have a) the original radius of the fake sphere, b) the actual radius of the real sphere, and c) the new distance from the observer as variables

#

Rather than having to store the old distance from the observer and the current radius of the fake sphere too

#

I'm resizing the fake sphere based on a scale factor from its original radius 1

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Idk maybe I need to start from the beginning, idk if the whole problem makes sense from y'all's perspective

#

That is, if you're willing to help with it. Kinda getting off topic from my original question

#

Actually I don't think the "scale factor of the fake planet" matters cause the original radius is 1

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For this equation bluh

#

I've confused myself so hard

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Wait a second I swear to god is it just fake_r1 = fake_dist1 * fake_r0 / real_r0

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I don't know ;_;

#

I'm a grad student I do ODEs why am I struggling with basic ratios

tall pasture
#

Any help guys

zealous delta
#

how do i prove cos(pi/n) is irrational for n>3? could someone give me a hint

thorny nova
#

Assume cos pi/4 is rational

#

And then prove its irrational by contradiction

terse verge
smoky stream
#

We are all answering this

chilly knoll
#

okay

#

I also use that system, so lets see

#

Rectangles A, B and C are all the same shape, just different sizes.
For A, the width is 4 cm and the height is 2 cm, so the width is twice the height.
That means every rectangle is twice as wide as it is tall.

The total height of the big rectangle (C) is 2 cm + 4 cm = 6 cm, so its width has to be twice that.
So, y = 12 cm.

-# Made by Math-Problem-Solver-V16.py 🙂

subtle drift
#

Would it not be 24? The width of c is twice the length of a plus the width of b, which is 2+(4*2)=2+8=10 which means the width of c is 10, so doubling for the length gives 20, remember to add the 4 of the length of a since y includes that and you get y=24

#

In general 2a+5b=y, (a=2,b=4 in this case)

grave pond
#

(Oh, they already left. Why join a server just to post a GPT solution and then immediately leave?)

grave pond
subtle drift
#

It's weird how much math the machines can do nowadays

#

They're fantastic and stupid at the same time, knowing everything and nothing

fervent pewter
#

hey where can i find help for 2 colomn proofs?

upper karma
#

Can someone pls help me with geometry

#

I've been studying reflection of points across lines

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And how would I write these reflections in algebraic form

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And can someone explain how it all works

winged oyster
#

.dontasktoask

#

ugh

#

how do i summon that

winged oyster
upper karma
#

Huh?

#

Can you pls explain

#

I just joined this discord server

copper hazel
#

For someone to know what to answer, you need to explain what you need help with in detail

upper karma
#

Oh sorry

#

Basically I've been learning algebraic interpretation of reflection and learnt some reflection formula

#

I can't type it out but I could screenshot it

#

I don't know why it works

copper hazel
#

screenshot is great

upper karma
#

So I'm not confident in using it

copper hazel
#

fyi you can open a help channel, you will get more people to see your issue

upper karma
#

Sorry this is all really new to me

pallid osprey
#

how do u do c? do u find the hamiltonian cycle or what

wintry loom
#

How many blocks long is the wall im trying to recreate this video

#

How many yellow blocks on the line on the right

#

Please reply or @ me so I grt the notification if you can help

real sentinel
lunar hull
#

I mean, it's a legit math question. More or less.

lunar hull
#

and from his other interactions with the server, it seems like he's actually putting effort into it.

real sentinel
#

Seriously

#

But this is not the right channel

lunar hull
#

Trigonometry and geometry is not the right channel for a problem about perspective and angles?

real sentinel
lunar hull
#

where does it mention that one can only ask questions about homework problems assigned by a school?

real sentinel
#

Gaming

#

Not fun dude

#

Anyways...

lunar hull
#

@wintry loom The left edge of the center wood block is 200px tall. While the right edge is about 140. Typically, the way perspective works is that each block will be similar to the next down the line, so we find the ratio 200/140 and we assert that this ratio will be held for each block down the line. So the first orange block will be 140/x, where 140/x = 200/140. In other words, x = 98 or so. We don't need to find the heights of each of the blocks down the line, because we know that we can apply this ratio n times to go n blocks down the road, in other words, if we know the height of the last block we can work out how far we've gone.

The height of the last orange block seems to be 12px or so. So we have 12 = 200 * (140/200)^n where n is the number of total blocks in the hallway (including the first wood block), solving this using WA we get 7.88, or about 8 blocks total.

#

Hope this helps.

edgy seal
#

Hm that is actually an interesting question

true wing
#

Can someone please explain to me an easy way to determine if a triangle is similar?

obtuse walrus
true wing
#

Yeah

#

Probably should have specified

obtuse walrus
#

Do you know:

AA
AAA
ASA
AAS
SSS
SAS
RHS

#

@true wing

true wing
obtuse walrus
#

Ok, so when I first learn them, the teacher gave me some nice examples. But I'll just search you up some images on google. 😔

#

AA and AAA are the same

obtuse walrus
#

RHS - Right Angles, Hypothenuse, Side

obtuse walrus
#

The proof is left to the viewer as an exercise

dire ridge
dire ridge
worldly zephyr
#

Someone pls help

real sentinel
worldly zephyr
#

A

#

And b i don't understand both

real sentinel
#

compress both into sin2x

worldly zephyr
#

I don't get how that can be applied to the first question

real sentinel
#

Well

#

All else terms are constants

#

Max of sine gives max distance

worldly zephyr
real sentinel
#

And sine is max at 90 degree

real sentinel
#

Js try it

worldly zephyr
#

But

real sentinel
worldly zephyr
#

If sin is 90 degree

#

It will go up

#

Right?

real sentinel
#

Yep

real sentinel
#

Sine is 1

worldly zephyr
#

But that would mean d = 0

#

Because it goes up and straight down

real sentinel
worldly zephyr
#

Why?

real sentinel
#

2x = 90

#

X = 45

#

Bruhh

worldly zephyr
#

Sorry for being a dumbass

#

Thank you

real sentinel
real sentinel
upper karma
#

Can anyone help me with the question (highlighted) . This is a question from geometry vol10.

upper echo
edgy seal
#

@exotic yarrow please don't delete modpings even if the issue has been dealt with. It leaves us with a ghost ping being confused at what happened. (In cases like this where its spam we can make a good guess, but its not certain)

hasty juniper
#

hello. i need help with there for my review so i can start my next lesson. i need a general summarization and maybe some diagrams if possible? i just need to study for my review. (this is g8-9 stuff and im moving onto 11th and 12th after this, im in advanced classes) any help will be appreciated, if giving advice, please @ me or reply to this text, because i have my channels on mute.

#

all notes taken by myself so it might not be clear.

wintry cloud
#

I take my test tomorrow for geometry 😭

#

I'm so nervous

whole flame
red delta
#

What is Fundamental Identities?

obsidian harness
red delta
#

Trigonometry

obsidian harness
#

I'd say the most important one is the Pythagorean identity: $\sin^2 x + \cos^2 x = 1$

somber coyoteBOT
red delta
#

Got it, thank you

obsidian harness
#

no worries!

red delta
#

I’m taking a trigonometry, I can post some notes and questions here for help?

wraith pilot
#

Can someone friend request me if u can help with verifying expressions in a call please

#

I can’t figure out D

deft bluff
#

Hint: Multiply the top and bottom by something.

#

Actually this is overkill

#

Did you try combining the fractions?

wraith pilot
#

Yes this is what I got

wraith pilot
#

I got stuck here

deft bluff
wraith pilot
#

Omg I forgot it

simple vigil
#

It's basic

deft bluff
simple vigil
simple vigil
# wraith pilot

Your expand is incorrect
There should be sin² in numerator

wraith pilot
#

Are you guys able to call or no I’m sorry i struggle a lot with math if not that’s fine I’ll keep typing

wraith pilot
#

Trig

simple vigil
#

I m in 10th

#

This is my first year studying this topic

wraith pilot
#

What identity did u use to get to 1+1+2 part

simple vigil
wraith pilot
#

What about the other part

simple vigil
#

Which step ?

wraith pilot
#

Hold on I’m going to rewrite

simple vigil
#

Ok

#

Done @wraith pilot ?

wraith pilot
#

I’m lost

#

I hate this course it feels like a fucking puzzle piece

simple vigil
wraith pilot
simple vigil
#

Why I see a square root !!

wraith pilot
#

Wait no that’s just for my notes

#

So I can identify when I used an identity

#

Sorry

simple vigil
#

It's correct

#

2/sin

#

This is same as 2 x 1/sin

wraith pilot
#

If the 2 was a 4 would it be 4 x 1/sin

simple vigil
#

Yes

#

Should I share one question from my book ?

wraith pilot
#

Can you check my work for my other problems?

#

And yes please

simple vigil
# wraith pilot

Everything is correct
But I think you should mention identity used

wraith pilot
#

Ignore the last part for d

#

I’m going to go back and highlight so I can review

#

Do you know how to find exact values of an expression?

#

I can send an example

simple vigil
simple vigil
#

And sin and cos till 180

wraith pilot
simple vigil
#

Wait I don't know this exact ratio
I know like
0 30 45 60 & 90
But I can provide help

wraith pilot
#

It’s okay I’m going to skip it for now

simple vigil
wraith pilot
#

I’m going to try another one

#

Ok for this one which side would u start on

#

I’m thinking the right

simple vigil
#

Which question you are doing

wraith pilot
#

Hold on

simple vigil
#

Mine one ?

wraith pilot
simple vigil
#

Ok

wraith pilot
#

Because sec isn’t in cos and sin?

#

But the left looks more complicated but I’m not sure where to start there

simple vigil
simple vigil
#

Wait

#

This question is easy

#

Want hint ?

wraith pilot
#

I got not true

simple vigil
simple vigil
wraith pilot
#

I have to write it all down first

#

It’s cos squared

#

For the numerator but still

simple vigil
# wraith pilot

Wait you are not doing correct
In second step you wrote sin instead of sin² 💔

wraith pilot
#

I’m so tired I’m pulling an all nighter

#

For my final answer I still get cos

simple vigil
wraith pilot
#

It’s 3am for me

simple vigil
simple vigil
whole flame
#

Answer in 2 steps

cold veldt
#

@placid star @tender jetty

#

i have proved the 1st part , i am asking that to prove the second one

#

if in a hexagon all sides are equal then are the opposite sides parallel ?????

#

any proof ?

#

like how

#

how it could help in the question above 2nd part

#

<@&286206848099549185>catthin4K

placid star
#

sorry i misread the qn

cold veldt
#

np

civic rock
#

and then do the same with the other sides

cold veldt
cold veldt
#

ohk got it

#

thx

astral kernel
#

yo im studying about circles, angle measurements, arcs, central and also inscribed angles, tangents and secants

#

my exams tomorrow

#

is it possible for me to relearn all of this in like a night

#

im an average math guy

humble fable
#

the all circle geo is depended on rules and if you really learn them

#

you can easily beat ts out of the exam

#

dont do work by rote tho

#

learn them

#

i used to solve a few tests of easy circle questions

#

when i finished it i would solve hard ones

#

do it like this i hope you will get somewhere

astral kernel
#

Man my fooking dumbass forgot to study the week becore

astral kernel
humble fable
#

if you really are into this geo thing you will do it im counting on you bro

#

hope you can make it

astral kernel
astral kernel
#

Ill do my best man

humble fable
astral kernel
#

if my brain forgets everything mid exam then it is what it is twih

humble fable
astral kernel
#

Still in g10

humble fable
#

i was there too it really just gets in your mind

#

just do the study part and count on urself

astral kernel
#

Is it ok to like just stay up w caffeine for exams?

astral kernel
humble fable
#

but a few glasses wont hurt

#

get a few hours of sleep tho or else you really are going to forget the things

astral kernel
astral kernel
#

Also w jjba ofp

humble fable
#

you is the man

#

tell me how it goes im counting on you

#

cya

dire ridge
humble fable
#

a^2+b^2-2ab.cosx

humble fable
dire ridge
#

YKS?

humble fable
humble fable
dire ridge
#

expectations?

humble fable
#

shit's hard af

#

want metu machine engineering

dire ridge
#

shouldn't have said that here

dire ridge
#

americans have it easy

humble fable
#

real

dire ridge
humble fable
#

its really boring that we have to work this hard

#

geography is really a destiny

dire ridge
#

i will have mental breakdown again but not in deepseek chats this time in server but no i will not show it

#

i am 10th grade

#

do i have time

#

for

#

YKS

humble fable
#

bro why are you seeing differantations

#

on 10th

dire ridge
#

examples

#

questions

#

i am just showing example questions

#

math exam tomorrow barely studied

#

i have extremely severe adhd

#

will take months to get right meds

#

and a lot of other shit

humble fable
#

lets just dont occupy the chat gng

#

dms?

dire ridge
#

ok

#

yes

sinful cradle
#

Hi sorry if this is a dumb question but is the question I circled an acute isosceles or acute scalene? I’ve asked a bunch of ai’s for help and all of them said it was acute isosceles but the answer key says it’s acute scalene can someone help I’m so confused because I thought it was acute isosceles since there’s two congruent sides 😭

spare hull
#

it is acute isoceles

#

actually i think its obtuse isoceles

#

yeah its obtuse

sinful cradle
spare hull
sinful cradle
#

Right

spare hull
#

so the second the angle opposite to the other equal side will also be 25 right

sinful cradle
#

Ohhhhh yeah yeah

spare hull
#

so the thire will be 130

sinful cradle
#

Ohh okok so then it’ll equal 180 okay I got it now THANK YOUU

spare hull
#

yeah np

sinful cradle
# spare hull yeah np

wiat I have another question the answer key says it’s scalene is that wrong as well?

#

Cause there’s two congruent sides

spare hull
#

yeahyeah its wrong

#

btw just curious what class ru in?

sinful cradle
sinful cradle
spare hull
#

yea

sinful cradle
#

10th

spare hull
#

alrr

sinful cradle
spare hull
sinful cradle
spare hull
#

idk bro im indian i have to take whatever they give me

sinful cradle
spare hull
#

if i put it in those terms id prolly say im at like precalc level prolly

spare hull
sinful cradle
spare hull
worthy folio
#

Are you two in CBSE boards? Socrates and aash

spare hull
#

im in icse

#

i think she lives in the us

sinful cradle
sinful cradle
worthy folio
spare hull
sinful cradle
sinful cradle
# next seal Same time?

Yes it’s called double block math you can take two math classes at the same time but in different class periods if you know what I mean

spare hull
sinful cradle
next seal
sinful cradle
spare hull
worthy folio
next seal
#

Do you replace a class or something like that

spare hull
worthy folio
#

Oof!

sinful cradle
spare hull
sinful cradle
# next seal Do you replace a class or something like that

😭 no girl we have eight periods in total and four per a school day which get spilt into A day and B day, for example in B day your first period will be Geomtry your second period will be English your third will be history and then your fourth period would be Algebra 2

sinful cradle
sinful cradle
spare hull
spare hull
#

wait lemme do it

sinful cradle
sinful cradle
spare hull
#

it just feels kinda fake

sinful cradle
#

😭 what

spare hull
#

idk bro

sinful cradle
#

How does finance feel fake

spare hull
#

it just feels that way

spare hull
sinful cradle
sinful cradle
#

So take it

spare hull
#

when compared to some other types of math

spare hull
#

?

sinful cradle
#

Everything is made up

spare hull
#

bro trust other math is goated

sinful cradle
sinful cradle
sinful cradle
spare hull
sinful cradle
#

But why

#

How

#

Do you think MATH is fun

#

😭

sinful cradle
spare hull
spare hull
#

ok i got entp-a

sinful cradle
sinful cradle
sinful cradle
spare hull
#

ye

sinful cradle
spare hull
sinful cradle
# spare hull wait so what classes are you guys supposed to take and like what choices do you ...

We’re supposed to take English, science of any choice like biology, physics, chemistry, then we have math which you can pick, history which you can pick too like AP human geography, world geography, AP world history, then you have to take an elective which can be like orchestra, band, art, choir, dance or whatever they offer and then you also have to take a health class, speech class, and sports class

#

But you have lots of choices

spare hull
#

so you dont have to choose all sciences?

#

or even like history

sinful cradle
spare hull
#

what does AP stand for

sinful cradle
sinful cradle
# spare hull what does AP stand for

Advanced Placement it’s this type of course in high school which is equivalent to college level courses and it boosts your GPA (your average grade) a lot

spare hull
#

ohh damn

#

d u do ap?

sinful cradle
#

Yupp in ninth I took AP human geography and AP computer science principles, rn I’m taking AP stats, AP world history, and AP seminar

spare hull
#

damn thats a lot

#

btw how is gpa calculated?

sinful cradle
# spare hull damn thats a lot

It’s not that much most people take 10-15 if they rlly want to get into a competitive college 😭 so I’ll have to take a lot more over the summer or next year

spare hull
#

but i thought these are college level course shouldnt they be difficult for someone in the ninth grade

sinful cradle
# spare hull btw how is gpa calculated?

So there’s two types of gpas, unweighted and weighted. In unweighted gpa all classes get treated equally no matter how hard they are and each letter grade is assigned a point value, like for example if your grade in math is 90-100 (A) your gpa points is a 4.0, if its a 80-89 (B) then its 3.0, ifs its 70-79 (C) then its 2.0 and if its 60-69 (D) it’ll be 1.0 and if you get lower than that you basically fail that class so you get no gpa points. So basically for example if you have 3 As, 2 Bs, and 1 C = 4+4+4+3+3+2/6= 3.33 gpa or smth

spare hull
#

ohh thats nice

#

but in weighted the harder classes have more lenient point system

sinful cradle
#

Weighted gpa is out of 5.0 or 6.0 and that’s just based on how hard your class is so you can get extra points since they’re harder

#

But yeah lol

spare hull
#

yeah that makes sense

sinful cradle
#

Yupyup lol

spare hull
#

so you fail if you get below a 1.0? not an f?

sinful cradle
#

Fail and F are basically the same so you’ll get no points for it

spare hull
#

ok what about like e and stuff

sinful cradle
#

What the crap is e 😭

spare hull
#

you guys skip the E

#

?

#

why tf wud u do that

sinful cradle
#

😭 I think so cause I don’t know what that is

sinful cradle
spare hull
#

bro our school literally has a G

#

and im the only one in my school to ever get it bro

sinful cradle
sinful cradle
spare hull
#

i went to the exam and just sat there and randomly wrote some words on the paper

#

i scored like 8 on 100

spare hull
sinful cradle
spare hull
#

its a language

#

i was supposed to learn it but i never had a book for that so i just went their and wrote some random shi

sinful cradle
#

cause u gave off the vibe

spare hull
#

i live in south india

spare hull
sinful cradle
sinful cradle
spare hull
spare hull
#

i understand odiya and nepali

sinful cradle
spare hull
#

and he was like this is urs bro

sinful cradle
sinful cradle
sinful cradle
spare hull
#

tamil nadu is nice

#

its pretty hot

#

food is great

sinful cradle
# spare hull its pretty hot

Yeah it is it’s nice but very hot ive been there like 4-5 times but the last time I went was last year I think have you been there recently?

spare hull
#

i have been there an year ago

simple vigil
#

India brother i found 😂

sinful cradle
sinful cradle
spare hull
#

yea for work he goes there like every 3-4 months

simple vigil
#

But I think you guys should go to chill chat for this

spare hull
#

doesnt matter

sinful cradle
sinful cradle
sinful cradle
#

Is that a place in tamilnadu

spare hull
simple vigil
spare hull
simple vigil
#

It's better

spare hull
#

also

simple vigil
#

I saw tiger there in woods 💀

sinful cradle
spare hull
sinful cradle
spare hull
simple vigil
spare hull
sinful cradle
spare hull
sinful cradle
sinful cradle
spare hull
sinful cradle
#

Don’t google them

#

Are you done

#

Socrates

spare hull
#

washington newyork nevada illonois michigan california north dakota south dakota texas georgia alqaska florida ohio pensylvania kentucky north and south carolina new jersey hawai colorado utah alabama new mexico conneticut idaho st louis nebraska missisipi

#

all i could think of

#

i prolly know more but they arent popping into my head

sinful cradle
spare hull
spare hull
sinful cradle
spare hull
#

texas

#

or ohio

sinful cradle
#

None of those

spare hull
#

east or west

#

?

sinful cradle
sinful cradle
#

Acc

#

Wait

#

Yeah

#

Neither

spare hull
sinful cradle
spare hull
#

ok wait

#

lemmethink

sinful cradle
#

Okay think

spare hull
#

wahington

#

no nvm

#

wtf

#

u said 2 vowels

#

i think either new york or utah

#

ig newyork

sinful cradle
#

Nope it isn’t

spare hull
#

no

#

ok

sinful cradle
#

New York doesn’t have a lot of Indians I’m assuming

spare hull
#

hmm

sinful cradle
#

But you did say the answer I just said no cause I just wanted to 😭