#help-10
1 messages · Page 29 of 1
x^2 + x^2 = y^2
2x^2 = y^2
removing the ^2 from both would result in
2x = y?
Hypotenuse = sqrt(2) * x
side 1 & side 2 = x
I can make x = sqrt(2) and therefore
Hypotenuse = 2
side 1 & side 2 = sqrt(2)
and that should be enough for me to solve sine (45 degrees)?
Taken channel, switch to an available one, please.
Anyways, so from @silver fox we know that the adjacent and opposite side in our right triangle in sine (45 degrees) should have the same lenght, and that the hypotenuse is equal to the square root of (2x^2), which simplifies to sqrt(2) * x
am I on the right path here?
the reason why the hypotenuse is sqrt(2) * x is because:
sqrt(x^2 + x^2) = hypotenuse
= sqrt(2x^2) = hypotenuse
with that in mind, it's quite easy to find sin 45
sin = opposite side/hypotenuse
if we consider the adjacent side to be sqrt(2), meaning that opposite side also is sqrt(2)
then the hypotenus is 2
sqrt(2) / 2 = about 0,7071
the rule we made earlier says that hypotenuse is squareroot of 2 multiplied by one of the other sides of the triangle
The following error occured while calculating:
Error: Undefined symbol sqrt2
one moment, i may have accidentally flipped the sides
it's 2 divided by sqrt(2)
no its not
oh, true
just checked using the calculator, and the answer is infact equal to the calculation we've made
why can't it be applied to sine (x) and not sine (22)?
all right, but in case i recieve any other angle, what should I do?
taking sin (22) as an example
calculator
sure, but here we're told to find exact value for sin (22), meaning that i'll have to get sides of a triangle with 22 as one of its angles
how can i use a normal calculator to solve this, and is there any possible way of finding the sides without the need of any calculators at all, just like how we did find sides of a triangle for sin (45)?
all right, i'll rely on you
one last question, I promise
If I have the option to use Geogebra and calculator, how would I be able to find sides of a triangle with 22 degrees in one of its sides?
wouldn't that essentially just be to take an algebra calculator and plug this:
x/y = sin(22)
you could use this to get an aproximation
i'll try memorizing it
but as said, if i had an algebra calculator and plugged x/y = sin(22),
wouldn't i have basically gotten two of the sides, which is more than enough?
Master Oogway
you cant find x and y
x/y = sin(22)
is the same as opposite side / hypotenuse = sin(22)
the calculator would suggest values for x and y, wouldn't it?
I'm aware there are infinite suggestions, but i only need one
okay, so that wouldn't work
which leads us back to the problem: if know what the value of sin (22) is by using a calculator, is there any way I can find all sides of the triangle?
no
got it, i'll do research regarding whether this is possible in Geogebra
for now, tons of thanks to you, @thick oracle , and lots of creds to @silver fox
np
Closed by @tall arrow
Use .reopen if this was a mistake.
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
I’ve been trying to figure this problem out since last night. I have a general idea that one of the kinematic equations are most likely involved but I keep second guessing and thinking I’m overthinking it anyways. The rest of the questions on the assignment were significantly easier to do but I just don’t know about this one and I kept trying to find it in the textbook or something similar but there’s not really anything very helpful. I just need to know where to start on this and I’m pretty sure I can figure it out from that if push comes to shove
(Ignore my dumb answers it saved, I just put them out of frustration thinking I was overthinking it all again).
I hope basic physics is allowed here. Didn’t see a channel but if it’s not I’ll head out so just let me know 👌
you gotta resolve forces in both x and y directions i think
also this is mechanics (best part of maths other than pure)
Can you explain that a little more? I’m not sure I know what you mean
so break each force down into its x-direction and y-direction components
or perpendicular and parallel to the way the car is facing
Would the next step be adding them together then? So 448 + 389 for magnitude and 40 degrees for direction??
I don’t think so. I really just don’t know where to start with this one. The other problems were all mainly conversion and basic substitution into kinematic equations,, so I haven’t done anything besides that up to this point
@agile island Has your question been resolved?
<@&286206848099549185>
@agile island Has your question been resolved?
Closed by @agile island
Use .reopen if this was a mistake.
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
how do I solve this?, plugging in doesn't seem, to work
I think it uses the indea that lim x-> 0 of (sinx)/x = 1
but Idk how to get that
Try Taylor series
I don't know that - it is a calc a high school class
(well its BC but reviewing calc A rn)
R00tKiT
Just take x common from denominator
to much ppl talking idk what to do
And then separate limits
can U write out the seperation of limit
I think I know what u r talking about I just need confirmation
I got it nvm
Ok kay
No worries
!close
.close
Closed by @lusty cedar
Use .reopen if this was a mistake.
This way
ty
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
This is literally basic algebra and I think I'm dumb. I'm supposed to simplify.
I'm stuck at:
(x^3 - 4x^2 - 4x - 1)^2 + (x^5 + 6x^3 + 9x)
Mainly the squaring of the cubic
seems a bit annoying to do
a BiT
multiply it out and simplify
uh
or wait
theres prob a simpler way
u could do x((x-2)^2 - 1/x) and then square ig
idk if thats easier
I'm slightly confused
i'll give it a go
i'm just confused as to what you meant by multiply out
i forgot wtf to do again when it comes to a polynomial being squared like that
Okay so I did give it ago
but now I'm stuck at
(x-2)^4
oh my god now i realized it
i was never taught
how to multiply it like this
t1 * t1 + t1 * t2 + t1 * t3 ...
.close
Closed by @dry echo
Use .reopen if this was a mistake.
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
hi
is the residue at all zeros of a holomorphic function 0
only poles have non zero residue
yay?
nay?
oops meromorphic
holomorphic is 0 residue throughout as it contains no poles
i think~
Closed by @stable rain
Use .reopen if this was a mistake.
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
its got a tan in it
ok let's derive it
okok
imagine a polygon
regular one 😂
actually ill just draw it
snow's a tikz master so its a little unfortunate they aren't here atm
cant we just consider an arc
okok
of 2pi/n radians
that would probably be more efficient than computing the direct limit tbh
and i feel the line thru the 2 ends of the arc approaches the line
but would take some work
mayb~
hf calculating
Area = (number of sides × length of one side × apothem)/2?
what about it
oh i got how the formula works now
oh word
what's in between those
apothem * base * number of triangles
yes
finding apothem is trig
okok
right
how did u get that
the base of this triangle (aka the side perpendicular to the red)
number of sides × length of one side × apothem=cost(pi/n)?
is just 1/2

thats just the area
the base is 1/2, the red line (the height) is the apothem
cot relates the two
wtf
i forgot trig, fairy, explain to me cotan again😭
wait im in awe rn
ok give me. 4 min
looks kinda bad when its large
how does one reach this level of competency jesus
that looks nice
oh so fraction just recipricates
yall done here?
,w lim n to inf of (n * cot(pi/n) / 4 - pi*(1/2 * cot(pi/n))^2)/((1/4 + pi*(1/2 * cot(pi/n))^2) - n * cot(pi/n) / 4)
no not even close
did yall not work with limits
did you watch the video
opposite is 1/2
nvm
substitution jutsu
y
👋
,w pi/n from
Wolfram Alpha doesn't understand your query!
Perhaps try rephrasing your question?
Click here to refine your query online
..
he asked me what it was
,w cot(pi/n) definition
@tall tusk have u done limits
its literally just adj/opp
learnt
thats just the angle
learning rn
pi/n is just the angle
which angle
why
pi/n is the red theta
listen to the circular man
pi
it isnt
r^2 sin (2pi/n)
so it's not the angle of theta
then the area of the circular bit is pi r^2/n
just show the diff of these -> 0 as
oh man
im bad at latex but i can try
$\begin{tikzpicture}[scale=5]
\path [name path=inner] (0, 0) -- ({360/(212)} : 1);
\path [name path=ngon] (0 : 1) foreach \t in {1, ..., 11} { -- (\t360/12 : 1) } -- cycle;
\draw [color=green, name intersections={of=inner and ngon, by=X}] let \p1 = (X) in (0, 0) circle [radius={veclen(\x1, \y1)}];
\draw [color=purple] (0, 0) circle [radius=1];
\draw [color=blue] (0 : 1) foreach \t in {1, ..., 11} { -- (\t*360/12 : 1) } -- cycle;
\end{tikzpicture}$
$\begin{tikzpicture}[scale=5]
\path [name path=inner] (0, 0) -- ({360/(212)} : 1);
\path [name path=ngon] (0 : 1) foreach \t in {1, ..., 11} { -- (\t360/12 : 1) } -- cycle;
\draw [color=g, name intersections={of=inner and ngon, by=X}] let \p1 = (X) in (0, 0) circle [radius={veclen(\x1, \y1)}];
\draw [color=p] (0, 0) circle [radius=1];
\draw [color=b] (0 : 1) foreach \t in {1, ..., 11} { -- (\t*360/12 : 1) } -- cycle;
\end{tikzpicture}$
what
Chris Hu
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
WOW
yea can u latex what i said
oh
he's a visual learner i suppose
idk whats happening
weird method lol
fairy
we gotta use ratio
@wild swallow help me out
what thats
fairy is useless
random
bro

snow think of it
😂
but yes this is true but no not what to show
i think i said it wrong
D:
okok
SO
let's look at a hexagon
ok
u prob get a 0/0 n l hopital it
what is alpha, idk
wtf
..
yeah that's it
idk how you got rid of the brace argument
im so dumb
..
i didnt know that was a thing 🤣
trig is to get triangle area
😵💫
pi is to get my area
circle is trolling
broo, im the only one confused, just explain to me
okok
do u have saturday school or something
with an arbitrary r, a circle has radius pi r^2
no, thats why im on apex
😂
and listening to u
bro ive played 30 min
i will not help
im focusing
jeez, im in a game tho
circle's a godtier troll
what relation
what is theta in terms of alpha
while area of polygon is $nr^2\sin(2pi/n)$
bro trig only works for right angled triangles
given opposite of alpha is just 1
so we want to show
what is going on bruh
fairy
just continue
explaining their relationship
circle is just a pathetic person
are u chinese fairy
ok continue explaining
LOL
u ghosted all my DM
this entire channel is a shitshow
fuck snow
what is going on
$lim{n \to \inf} \pi r^2 nr^2\sin(2pi/n)$
why is it
dividing by 2
oh nos
latex time
circle you absolute clown
hey
snow is the real clown
chill there
LOL
u are melting rn
我要死了
no
circle can you even read that
ok sorry
bruh wtf
fuck u
call me
BRUH
yo i think you got blocked
its symmetrical
a is the length of the line right?
aka isosceles
shush
LOL
LOL
scroll up
\begin{align}
lim{n \to \inf} \pi r^2 nr^2\sin(2pi/n)
{align}\end
尊重
true
a is alpha
LOG
fairyexp
😭
no
you asked what alpha was
alpha is alpha
alpha is 2pi/n
what does that make theta
god bless snow
shut up snow
just
CIRCLE
use r^2 sin
HAHAHAHA
fairy what then
why are u like this
..
use trig
how
geez how to ues trig
my left eye is acting out again
how do you consistently find the most funny things to say circle
i am just
what is this chuuni
all rounded
can confirm
wtf
..
bit wild
ye
ok you get the alpha
chris needs it for the exam
now what
oh my
when finding limit its a constant that cancels anw
well doesnt cancel but lim goes to 0
LOL
still helps me
HAHAHAHAH
haha
y'all are struggling too much here
its completely voluntary
but how can infinity be monotonically increasing
multiply
ok wait
🤔
u got the apothem
now multiply by the base
which you did
then multiply by number of triangles
which si n
good job!!
yes good thats the area of the n gon
now find the area of the incircle
the radius of the incircle is the apothem
u sure about that?
why wouldnt i be
,w miniminiminimini
wtf
ur tryna find this limit
yes
why didnt i add \inf as a shortcut
tsk tsk
im writing n->w
k
but whatever
that's disturbing
simplify fairy
,w simplify fairy
Wolfram Alpha doesn't understand your query!
Perhaps try rephrasing your question?
Click here to refine your query online
hmmmmm
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
💀
thats the hypotenuse
fairy
the radius of the outer circle is apothem??
right
the inner circle is less
than apothem
radius
idk maybe you could use complex numbers to make things nicer
roots of unity
whatever
ye
it is
at each like angle of the n-gon, there is a little space between the circle and n-gon
so that makes the radius not the same of the apothem??
how is this statement true
look again
ok
$\begin{tikzpicture}[scale=5]
\path [name path=inner] (0, 0) -- ({360/(212)} : 1);
\path [name path=ngon] (0 : 1) foreach \t in {1, ..., 11} { -- (\t360/12 : 1) } -- cycle;
\draw [color=g, name intersections={of=inner and ngon, by=X}] let \p1 = (X) in (0, 0) circle [radius={veclen(\x1, \y1)}];
\draw [color=p] (0, 0) circle [radius=1];
\draw [color=b] (0 : 1) foreach \t in {1, ..., 11} { -- (\t*360/12 : 1) } -- cycle;
\end{tikzpicture}$
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
oh my
am i
ur right
still here wow
just secretly kissed you
oh wow
incircle touches midpoints of the sides
lol
$\lim_{n \to \inf} \pi r^2 nr^2\sin(2pi/n)$
how do i align
underscore
wow
that looks so stupid
woah
guys i got it
$\lim_{n \to \inf} \pi r^2/n - r^2\sin(2pi/n)$
ok so thats what we wanna show is =0
yep evaluate that guy
if we show that we essentially show that we get 1
@tall tusk do u know how to evaluate limits
kind of
what
,w epsilon delta
u being weird here
maybe not really
fiary
go from where i ended
you can simply take an equivalent of sin(2pi/n) at infinity
how to
im sick of seeing sin everywhere
fairy
cleanse thy sin
that's disturbing
sin(2pi/n) is equivalent to 2pi/n when goes to infinity
it simplify nicely with your expression
listen to the corbak man
i dont even have sin
in my thing tho??
ive csc
$\lim_{n \to \inf} \pi r^2/n - r^2\sin(2pi/n)
\\= r^2\lim_{n \to \inf} \pi /n - 1\sin(2pi/n) $ as r is independent of n
$\\= r^2(\lim_{n \to \inf} \pi /n -\lim_{n \to \inf} - 1\sin(2pi/n)) $
LES GO LATEX
wait
it
didnt even render
OMG NU
yea
sad
what is csc ? Show me your problem
prob cosec lol
Closed by @tall tusk
Use .reopen if this was a mistake.
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
$\sqrt[2]{ \frac{a^2 \cdot \sqrt{a}}{a^\frac{7}{2}}} = a \cdot (\frac{a^\frac{1}{2}}{a^\frac{7}{2}})^\frac{1}{2} = \frac{a \cdot a^\frac{1}{4}}{a^\frac{7}{4}} = \frac{a^\frac{5}{4}}{a^\frac{7}{4}} = a^{-\frac{1}{2}}$
Raid
Hey is this correct?
def correct raid
oh yea
🥰
oh ok chris ❤️
gl 🙂
ill pin them for u
❤️
sorry guys xd
@serene furnace Has your question been resolved?
@serene furnace Has your question been resolved?
Is this correct?
<@&286206848099549185> sorry guys xd
Is this also the best way to solve it? I've solved it in 3 different ways, what, in your opinion, is the best solution? That you would do
There are different solutions. I could use all radicals for example and only at the end use rational exponents
I mean not different solutions
I'd do everything inside the square root first not removing anything just to avoid silly errors
Closed by @serene furnace
Use .reopen if this was a mistake.
Nw
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
$g\left(x\right)=\left|\frac{x+4}{x^2-4}\right|$
m4x70
use the continuity of abstract values and determine intervals when continues
@true oyster Has your question been resolved?
@true oyster Has your question been resolved?
Closed due to timeout
Use .reopen if this was a mistake.
Send your question here to claim the channel.
Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!
Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.
What is R10 and R4
oh why
i think the % is 15.23809524 rounded of being 15.23? or would it round of to 15.24?
Umbraleviathan
btw im not too advanced in math btw
They're just variables
but i think its 10 500 - 8900 over 10500 x 100?
and thats the %?
so like 1600 over or divided by 10500 x 100?
oh ye sorry
"Round to one decimal place"
but then i dont get the questions
The second is saying to express the selling price as a percentage of the buy price
And then the third is saying "what's the actual monetary loss"
lost me again, im very tired
8900 is what percentage of 10500
ohh
Tbh if you're tired, go to sleep, pick it up tomorrow
I really don't wanna run in circles
ye ik its 3 am but im out most the day tmrw and got a test on monday
Don't stress yourself out
Unless you have school tomorrow for whatever reason
I fucking hate the wifi here
forgotten how to do this
its like something over or x by a 100
oh wait
$\frac{a}{A} \cdot 100%$
Umbraleviathan
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
Yes
ok and number 3
Express the loss as a percentage of the final price
So
The answer is a percentage of the final price
So
What's your final price
8900?
1600
So 1600 is what percent of 8900
ohh now i get the question
