#precalculus

1 messages · Page 80 of 1

frail lion
#

It can be zero

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Line , y=mx

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Passes through origin

frail lion
bitter pier
#

oh initial distance

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makes sense

gritty roost
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Oh right

frail lion
#

Yes brotato chips

gritty roost
#

Wait, I think I can see that part in a textbook

bitter pier
gritty roost
#

It just wasn't written as c

bitter pier
#

perhaps are you Chinese

gritty roost
frail lion
bitter pier
gritty roost
frail lion
gritty roost
gritty roost
#

Not a country

frail lion
#

I'm from Asia too bro

gritty roost
frail lion
bitter pier
#

oh

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india

bitter pier
#

do you shake your head while explaining?

frail lion
#

Yeah man it's an indian gene problem

bitter pier
#

woah

gritty roost
bitter pier
bitter pier
#

near

fluid sorrel
bitter pier
bitter pier
frail lion
#

Me hating or loving does not make a god damn difference

gritty roost
fluid sorrel
bitter pier
gritty roost
crimson light
#

i got a question whats the use of mathematical model and use of euler method and why is it even there what perpose does it serve in college they just teach i wanna know why and how did they make it

willow skiff
carmine orbit
carmine orbit
willow skiff
#

or if you can get Nitro for free somehow

carmine orbit
#

Ohhh thanks brotha

frail lion
#

Oi @willow skiff @carmine orbit guys you interested in trying physics

carmine orbit
frail lion
#

.

frail lion
carmine orbit
frail lion
#

I have for 2 of them

#

Not the tension

carmine orbit
#

Hyperbolic function

carmine orbit
#

Fahh🗣️🗣️

frail lion
#

No

frail lion
#

I think not

carmine orbit
#

Send soln

frail lion
#

I will but I can't now

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Ill tomorrow

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But why what you aint tryin

carmine orbit
frail lion
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What

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I don't understand what you're trying to convey by

frail lion
#

I mean is this a yes or a no

carmine orbit
#

You do it

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Send me the solution when youre done

vivid lintel
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i will try by perimeter of parabola once

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lets see if it works

carmine orbit
#

Only thing that works is catenary

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And if im not wrong ts is from pathfinder

vivid lintel
#

what goes for trying, Once i approximated arch of a cycloid by ellipse ( Lame curve to be specific ) lets see what goes with this

lapis sphinx
#

or you can apply the expansion for ln(1+x)

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or you can also use LH rule if you wish

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suppose you're given lim x to 0 [ln(1+x)]/x. if you first expand ln(1+x) you need not write the terms after x because their contribution to the sum becomes zero in the limit. so you're left with lim x to 0 x/x which is equal to 1 basically

#

suppose you're given ln(1+5x)/x lim x to 0 once again expand the series and you're left with lim x to 0 5x/x which equates to 5

hushed sphinx
# lapis sphinx

Yeah, but this is apparently supposed to be done with PRE-calculus tools, which I don't think that series expansion is.

lapis sphinx
#

if you don't want to dwell in series expansion, you can always opt for l'hospital

hushed sphinx
#

Not pre-calculus either.

lapis sphinx
#

if you don't mind me asking, you're not indian right?

hushed sphinx
#

No. What does that have to do with anything, though?

lapis sphinx
#

here (in inda), we're mostly taught all of this before college/universities. our system is different from other countries so i am not really familiar with the terms calculus, pre-calculus etc.

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series expansion and lh rule are the most recommended ways to solve a limit for our curriculum which is why i suggested those here

hushed sphinx
#

"Precalculus" is an American term whose precise boundaries I have no good understanding of. But the word only seems to make sense if it excludes things that you need to know about derivatives for.

carmine orbit
#

With PRE calculus

hushed sphinx
#

Who is "they"?

lapis sphinx
#

they as in indian students i presume

carmine orbit
lapis sphinx
#

another way you could approach this problem i guess is using 1^∞ form of limits

carmine orbit
carmine orbit
lapis sphinx
#

if i remember correctly this is how you solve it

lapis sphinx
#

we were taught inverse trigonometric functions as pre-calculus too

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since it pops up a lot in various questions

carmine orbit
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And stuff like derivatives integration aod etc are considered calculus

lapis sphinx
carmine orbit
#

So basically he isnt wrong either since expansion is done in calculus

willow skiff
# lapis sphinx

this is stretching the bounds of 'pre-calculus' but you're right, you can do this without actually understanding calculus

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just memorise that specific limit and worry about the derivation later in calculus

willow skiff
lapis sphinx
#

thanks

willow skiff
#

so by variable substitution, $\lim_{bx \to 0} \frac{\ln(1 + bx)}{bx} = 1$ also

#

and then it follows

lapis sphinx
obsidian monolithBOT
lapis sphinx
willow skiff
#

I hate JEE culture so much, but if that's where your dreams are, then....

hushed sphinx
willow skiff
#

or clarified as "1^infinity is undefined, so you need to recognise the specific limit"

carmine orbit
lapis sphinx
carmine orbit
#

What

lapis sphinx
lapis sphinx
#

ok so if this is pre calculus

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is there a calculus channel?

frail lion
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And why are you also not trying it

lapis shuttle
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guys i'm not wrong right unimpressedhackle

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my teacher HAD to have typed that in incorrectly or sum cuz i redid it and got the same thing

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we will ignore the handwriting ok 😭 😭

raw hill
obsidian monolithBOT
raw hill
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,calc 2153*12

obsidian monolithBOT
#

Result:

25836
frail lion
fluid sorrel
# frail lion

Answer is 2000?? Or 0... What does that other part say. Is it abt ai

median spear
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As f(x) has no integers in range

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Cuz I'm getting arcos(~1.25), which is not defined

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So kinda thinking that function is not defined in any real domain brisky

frail lion
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Answer is neither 2000 nor 0

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Btw how are ya guys doing it ?

hidden birch
frail lion
#

No

hidden birch
#

oh wait

hidden birch
vivid lintel
hidden birch
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wait no

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anyway idk anymore

vivid lintel
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technically it sohuld be 2000 + 0 but then the question says to put 0 if no values exist

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and since no values exist

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answer is 0

frail lion
#

The answer is not zero damnit

frail lion
hidden birch
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frik i was using domain instead of range

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I'll solve again

vivid lintel
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its arccos(1.78), but arccos is only valid in the interval [-1,1] right?

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so how is the answer not 0\

frail lion
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Idk want solution?

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But don't discuss it

vivid lintel
#

yesh send once

vivid lintel
west ice
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No range is like the output no?

vivid lintel
frail lion
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Range is 0 to π

vivid lintel
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how can you get the output

frail lion
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Domain -1 to 1

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Not 0

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Of arccos

west ice
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hmmcat they said the output, and the output is not -1 to 1

hidden birch
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last resort, graph it

vivid lintel
frail lion
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Range of f(x) max 0 to 3.14

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But max

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Maybe 0 to 2 , maybe 0 to 3

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Idk

hidden birch
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,w plot f(x)= arccos(√(arcsin(sec(ln((2x²+3x+10)/(x²-3x+2))))))

frail lion
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Yeah very well

hidden birch
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funny graph

frail lion
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No not that

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I aint using anything else than my brain

vivid lintel
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,w plot f(x)= arccos(√(arcsin(sec(log_e((2x²+3x+10)/(x²-3x+2))))))

obsidian monolithBOT
hidden birch
#

,w plot f(x)= floor(Re(arccos(√(arcsin(sec(ln((2x²+3x+10)/(x²-3x+2)))))))) from -10 to 10

hidden birch
#

0's and 1's

hidden birch
#

-# bump

hidden birch
#

just in case

west ice
#

Glass feels good today and decided to turn on his brain at the weeken for once

hidden birch
#

ohnoo

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maybe it's the tea

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i mean I'm not sure of the answer

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composite functions' domain and range are my weakness

frail lion
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Damn bro who asked 😂😂😂😂👌👌😂😂

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Js kidding

hidden birch
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i had to provide the context bro

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guess what else no one asked

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no I'm not gonna do it

frail lion
frail lion
hidden birch
hidden birch
hidden birch
#

-# I'm not gonna drift further from the math topic cuz it becomes out of topic and mods gonna snipe us

frail lion
#

You're right

fluid sorrel
frail lion
#

Umm guys guys

median spear
frail lion
#

@hidden birch @fluid sorrel @median spear

median spear
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Hmm

frail lion
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Hear me out

median spear
#

shoot

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That function is not defined in any real interval

frail lion
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Bro I'm really really sorry I was checking wrong answer

median spear
#

what's the actual answer

median spear
#

which yt channels are you referring to for such questions @frail lion

frail lion
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It's 0 guys

fluid sorrel
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Hola

median spear
median spear
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always check the domain before going for range

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Adds on they have Arrowes us to zero thing in question

uncut star
#

If i remember correctly we had to minimize gpe right

hidden birch
uncut star
#

That should give us cosh

frail lion
frail lion
uncut star
#

Gravitational potential energy

frail lion
#

What no I don't think so

fluid sorrel
#

Sec will give all real values except (-1,1)

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But sin^-1 domain is [-1,1]

uncut star
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Hmmm I need to check as far as my memory goes it was something related to this

fluid sorrel
#

Bcz other real numbers arsinx won't accept

hidden birch
fluid sorrel
#

So arsin1 is π/2

fluid sorrel
west ice
hidden birch
west ice
#

What's happening here

fluid sorrel
west ice
#

,w sec function range

obsidian monolithBOT
west ice
#

Stupid wolfram

hidden birch
#

,w plot sec x

river drift
obsidian monolithBOT
#

κλαουντ ☁ (cloud)

fluid sorrel
hidden birch
#

oh right i forgot the mirror below

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not really mirror

fluid sorrel
fluid sorrel
#

√π/2 is SMTH 1.25

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That's not in domain of arcosx

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So fx range is 0

hidden birch
#

sorry i forgot the open interval notation for a bit

fluid sorrel
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Answer is 0

hidden birch
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ok got it

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i actually considered 0 but sam said no at first

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after me having 2 mistakes

median spear
#

yea

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it was a minute question

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Looks scary at first

hidden birch
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that's when i used wolfram graph

median spear
#

But at the end it's easy

hidden birch
#

so what's wrong with wolfram why it did me dirty by giving that graph

median spear
hidden birch
#

i did

frail lion
#

I actually was trying to solve it that's why I thought what is this

hidden birch
#

but sam trolled

median spear
hidden birch
#

for some reason i still trust wolfram

hidden birch
median spear
frail lion
median spear
#

Trust ur concepts

hidden birch
#

you chill

median spear
uncut star
median spear
#

Triaengle

#

Hi

uncut star
#

Which is not what we need here

uncut star
median spear
uncut star
#

?

median spear
hidden birch
frail lion
median spear
frail lion
#

It's the one

west ice
fluid sorrel
west ice
#

But for now ,yeah

median spear
west ice
frail lion
vivid lintel
#

Anyways the graph

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And the results were very not simple

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Tan of beta is approximately 1

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For this

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Ok I tried this by perimeter and got a transcendental equation

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And radius of curvature is approximately 14.48…

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The closest I could get

spiral dawn
#

might be cooked for a2 calc

ivory fractal
#

is there any way this can be solved on desmos, or js have to algebraically solve it?

willow skiff
#

the condition for a slant asymptote is that the numerator has to be 1 degree more than the denominator

#

so that gives you x^k * x * x has 1 degree more than x^5

willow skiff
neat path
#

So that means k+2+’1’ = 5

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And thus k is 2?

manic harness
#

Yo what type math is this??

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Can anyone here help me with Ap precalc stuff

versed zodiac
#

we’re using the definition of the derivative to solve B, does anyone know how to solve? (calculus)

amber flint
#

then plug in the function given

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also plug in x=3

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then just solve the limit?

manic harness
frail lion
#

Tan beta 5/(3√3)
Radius of curvature 52/(3√3 )
0.97 and 10 approximately in decimals

frail lion
alpine vector
#

is precal hard?

willow skiff
#

(k + 2) = 6 instead

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Ah, you misinterpreted 1 more: 1 more goes on the right hand side

terse echo
#

can someone remind me for limit notation, if it says x->2^-, does it mean approaching from the right or the left

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i always mix it up

terse echo
#

thank you 🙏

raw hill
vivid lintel
vivid lintel
#

So it’s just an approximation

neat path
willow skiff
#

For example, 11 is 1 more than 10

willow skiff
neat path
#

Ah

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Thanks

neat path
#

@willow skiff

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Do you need any other extra training as a high schooler

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I know most things you learn in grade 11

frail lion
neat path
#

Ur right

frail lion
#

Ok

neat path
#

But

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Having an extra x in the numerator will make it a linear function

frail lion
#

Yeah so what that is what we need

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Slant asymptote
Slant line is required

neat path
#

And a linear function gives a slant line

frail lion
#

Yes generally

neat path
#

So then

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I’m so dumb

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Vro

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Sorry

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K is 4 rt

frail lion
frail lion
#

Js kiddin

neat path
#

I figured

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K+2=5+1

frail lion
#

Yk one more thing

#

When ya divide these both polynomials by long division, the quotient you'll get will be your asymptote

willow skiff
west ice
frail lion
neat path
#

I’m 14 rn

vivid lintel
frail lion
#

Ok

carmine orbit
vivid lintel
#

Bro

#

Why did you even make this joke

#

im having a stroke

shell bobcat
#

Hi everyone,
I'm about to start my first year as a business major and need to take MATH 108: Introductory Calculus with Business Applications. I've always struggled with math and am concerned about keeping up. I want to prepare myself and improve before classes begin.

What are the best strategies, resources, or study routines to build confidence and succeed in this course? Any advice or tips would be greatly appreciated!

Thanks in advance!

deft jetty
#

considering it sounds like this course probably isnt very rigorous id advice simply brushing up on computation involving basic algebra (up to quadratics, rational expressions) and arithmetic (exponentiation rules, being confident at handling fractions), those are some major things that ppl can trip up on anyways

#

id also recommend getting comfortable with reading graphs and learning to see how a graph will look based on the function and vice versa

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as for resources i think something like khan academy would be useful but its also an idea to find any worksheets or such that u can as volume is a p important factor in building these skills

carmine orbit
#

thomas calc or aops works fine

delicate wedge
#

what is pre calc?

timid jackal
#

calc is short for calculator guys

worldly blaze
#

what us precolc

worldly blaze
scenic lance
#

Calc is short for calculus goofy goober

vital swift
scenic lance
#

Calc-ulus

still brook
#

hey guys

#

can someine help

bold carbon
#

x -> -2^- means that we want to figure out the behavior of the function as the x value moves towards -2, from the right. what's the behavior of the function near -2?

median spear
#

As x tends to -2^-

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That is js behind -2, check the value of graph

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(it tends to ♾️)

fluid sorrel
# still brook

Infinity as -2^- is a number just on the left side of -2... So see the graph from the left side of-2.. as x tends to-2 y tends to infinity.

carmine orbit
void scaffold
#

Hopefully this is the right channel since idk I don't do math en English but
How do you calculate a linear function when you know two points like f(-1)=4 and f(2)=-5
I mean I tried to take some guesses but there's gotta be a way to calculate it right?

echo sinew
#

Do you know the general form of a linear function (also known as line)?

#

It is y = ...

clear berry
#

y=mx+b
y=kx+b
y=mx+c
y=kx+c
pick one

trim shard
#

hands down

clear berry
#

nah general form is clearly ax+by+c=0

echo sinew
#

Indeed

#

But let's start with the explicit, I guess

#

Hopefully it should be a little easier, in my opinion

frail lion
fluid sorrel
# frail lion

It's continuous at x=0 so we can apply lim x to 0 and simplify to just get the terms of n?

#

U did it in 18s 🗿

carmine orbit
west ice
carmine orbit
#

lol

#

bro was probably at gun point

frail lion
#

I knew i couldn't move this mountain

#

So i left it

frail lion
frail lion
#

Cool gaming chair

fluid sorrel
#

Like tried it

#

Bcz that's the only reason they said continuous at x=0

frail lion
#

Yeah I guessed that

#

I will try it

#

I mean I obviously will

fluid sorrel
frail lion
#

Ok bro 👌

carmine orbit
#

i bet its comfy

frail lion
#

Yeah man very comfy 100 percent suggested

carmine orbit
#

it looks like i can sit on that for hours

frail lion
#

Bro it's actually a genius decision coz

#

You can't fall asleep on it

fluid sorrel
#

The only problem is how to find lambda

south mural
#

Can someone help me w 1 and 2

proud tangle
#

The increacing intervals would be the upper right, and the decreasing would be the bottom left (for question 1) and the increasing for question 2 would be the middle part, and the decreasing woud be the extremities (I think)

worldly scarab
#

Guys I struggle with limits and always make mistakes

#

What should I do to get better?

winged wigeon
fluid sorrel
fluid sorrel
worldly scarab
#

I have to use tons of trigonometric identity and I musnt make a single mistake to not ruin everything

winged wigeon
#

Not these?

worldly scarab
#

No 😂 I saw those, those are so es

#

Ez

#

I have to sleep tho it’s late for me ill tell u more later

winged wigeon
#

Alright cuz I’m curious why you considered those limits to be hard😭

fluid sorrel
# fluid sorrel

Does anyone know how to solve this??? I have typed my work above

fluid sorrel
bold carbon
# fluid sorrel Does anyone know how to solve this??? I have typed my work above

compute the limit as x -> 0 from the left and from the right

from the left, (x+1) < 1 and nearby, this means (x+1)^n -> 0 as n -> infinity

so the limit is just the lambda sine thing / x, as x -> 0 which i think you found to be 4 lambda

from the right, (x + 1) > 1, so (x+1)^n dominates, and the limit becomes

(1 - cos(1 - tan(pi/4 - x)))/x^2 as x -> 0

that comes out to 2

to be continuous, we need the left and right limits equal, so 4 lambda = 2 -> lambda = 1/2

then f(0) + 2 lambda = 2 + 2 * 1/2 = 3

#

the sine / x thing is easy to find the limit of, the trig composition thing is a lot more annoying, but you can use taylor expansions to simplify

#

tan(pi/4 - x) centered at pi/4 is about 1 - 2x, so then we have (1 - cos(1 - (1 - 2x)))/x^2

= (1 - cos(2x))/x^2

#

and thats a lot easier to find the limit for

fluid sorrel
#

Got it now

#

Thanks

lavish ferry
#

I really need help, I skipped algebra 2 so I could take pre calc and I’m strongly regretting it, I spend three hours outside of school a week with tutors for me just to keep failing test and for my tutors to just tell me my math skills are weak and I’m probably not going to get a good grade in the class. I don’t know what to do I can’t switch out, I’m working on maybe something for my test anxiety, but I’m willing to put in the work to get the grade I want. I just don’t know how to do it and I would love some guidance!

worldly scarab
lavish ferry
#

Not exactly l guess just algebra in general which has like transferred over into my pre calc causing me to not do good

worldly blaze
#

Since you skipped algebra 2 you kinda skipped the “other part” of algebra

#

precalc is basically just a review of both algebra classes so you should practice fundamentals msybe go over a textbook

lavish ferry
#

What textbook would you recommend? Or online resources? What are exactly are the fundamentals?

worldly blaze
#

other textbooks could suffice, i do heavily recommend using khan academy though because it’s pretty good for lower mathematics

halcyon prawn
#

Its about the limsup

proud tangle
#

If log 3+7=x+log3+1, then do I cancel everything out as usual, and then do the same with the logarithms if they are both the same? (x = 6 then right?)

manic trench
#

Yeah

#

log 3 is still a value after you calculate it

#

So it works out the same as any other number/term

proud tangle
#

So it is the same as a variable if I am canceling things out then right?

willow skiff
#

$u + 7 = x + u + 1$: subtract $u$ on both sides, $7 = x + 1$

obsidian monolithBOT
willow skiff
#

$\log 3 + 7 = x + \log 3 + 1$: subtract $\log 3$ on both sides, $7 = x + 1$

obsidian monolithBOT
worldly scarab
#

Stewart precalc is good

#

It’s also available in many languages if you need it to be translated

frail lion
#

Guys I was somewhere out so i wasnt active for some time 😅

#

But yeah no problemo see this

frail lion
fluid sorrel
fluid sorrel
#

Btw that limits question

#

Did u check the answer

#

A dude replied when I reposted with my work

#

We just had to check f0+ and f0- when n tends to infinity how it affects (x+1)^n

frail lion
#

J-i
-i-j
I+j
I-j

#

Cap cap cap cap

#

Include cap in all

#

I aint typin all those caps

fluid sorrel
#

Just a rough try

frail lion
#

Are you saying

#

Answer is given right there bro

frail lion
frail lion
#

Like far asf

#

Any one else wanna try can try too

#

I mean who's stopping you guys

fluid sorrel
#

If no then 🗿 dead

frail lion
#

Ok ok tell me how i-j

#

You're taking centrifugal force right ?

#

Opposing that is friction?

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I suppose you did this

fluid sorrel
#

Ok so r vector is perpendicular to v

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And it makes 45^° with + axis

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So it's roughly proportional to i+j

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But it's perpendicular to v

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And by figure and data we can say that v is 90° ahead of r

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So it's proportional to -i+j

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Which we can see from figure

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And friction is in the opposite direction of v

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So -(-i+j)

#

i-j

frail lion
fluid sorrel
#

First i forgot the fact that v is ahead by 90° and it's obvious by figure that it's going to be -i+j

frail lion
#

R vector is j-i

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And v is -i-j

frail lion
#

What more what less?

#

Opposes both doesn't it ?

fluid sorrel
fluid sorrel
fluid sorrel
#

Ohh no bro wait

fluid sorrel
#

R is towards centre

#

So break it

frail lion
#

R is towards center ?

#

Bro r vector is always taken radiallly outwards

fluid sorrel
#

Nopee

#

No

#

Ru sure with the answer it's i-j??

frail lion
#

What

fluid sorrel
#

Just

#

Blunder

frail lion
frail lion
#

This

#

Matter of fact it is given but

#

It's conceptually wrong

fluid sorrel
#

It should be i+j

frail lion
#

No

fluid sorrel
#

Then

frail lion
#

It's that we can't

#

Tell

fluid sorrel
frail lion
#

Book

#

Bro this question was in a test

#

I brainstormed it a bit

fluid sorrel
#

🗿 🗿

frail lion
#

No bro I did the worng answer

#

I mean I knew how the paper setter had

#

Thought

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Centrifugal

#

And did d

fluid sorrel
frail lion
#

You're telling?

fluid sorrel
frail lion
#

Centrifugal radially outward thats what I thought

#

But problem is that

#

Some friction will oppose velocity too

#

This is who I discussed ts with

#

And we reached here

fluid sorrel
#

In static state

#

fs acts in direction of Fc

#

It's given in book

#

​To prevent this outward sliding, the static friction force fs must push the particle back inward, towards the center, thereby opposing the tendency to slide out.

#

This

frail lion
#

Yes this defines the d option I agree cro

#

This is the centrifugal force concept man what

#

Exactly what I said

#

Which book tho

fluid sorrel
#

So now I understand how we were supposed to get this approach

#

If u remember the core concept of banking of road

#

There we used this concept in derivation of formulas

frail lion
#

Yeah

ivory fractal
#

how does synthetic division work?

frail lion
#

Don't learn that shi

ivory fractal
#

What do i do next

frail lion
#

X-3=0
X=3 ok right

#

1 -1 2 ok right

#

Bring down 1 multiply by 3

#

Ok right

#

3×2 6 ok right

frail lion
#

1×x + 2

#

X+2

#

Is quotient

ivory fractal
#

howd u get x+2 as the quotient

frail lion
#

You've got 1 and 2 in last

#

Not multiply the 1 by the degree you would get after subtractingthe upper max degree by lower max degree

#

Which Is , in this case , x

#

So 1×x

#

And then multiply 2 by one less degree , which is x^0 , which is 1

#

So 2×1

#

This is your quotient

#

X+2

ivory fractal
#

Ohh alrightt

#

Thx

#

x+2 +8/x-3?

frail lion
#

It's x+10 / x-3

#

Try for yourself once

ivory fractal
#

the remainder is 8 tho

frail lion
#

It's nothing bro

#

It has no specific integer value because it'll change as x changes

#

Why ? Coz the degree after Subtracting is zero which is some constant

#

Which is changing as x changes

#

So its nothing

frail lion
green trail
ivory fractal
worldly blaze
# frail lion Don't learn that shi

it’s faster than normal polynomial division in some cases, i do get where you’re coming from though because it’s a big time-waster

frail lion
#

If synthetic division is taught first and only that is taught , then one can't do anything he'll have to learn it but it's of no profit to learn it after proper long division

#

Like i did

uncut star
#

That gives us i-k
J

#

I-j

fluid sorrel
#

It's fs

#

Acting in direction of Fc

uncut star
frail lion
#

We're actually not given this information

#

Ok see assume there is some a tangential

#

Centrifugal radially outward
Tangential force direction of tangent

#

Angle between both is 90 degrees

#

but we don't know the mass and allat to use the tangential acceleration

#

Of force hence friction

#

Now if youre assuming that there is no tangential acceleration which the invigilator thought we would assume gives option d

#

That's why I did d but

#

I am just saying that actually assuming this is not conceptually sound

frail lion
#

Assuming this

last rose
#

derivatives are precalc right?

#

need to ask a derivative question

#

why can we use derivatives to find the biggest area of a shape / volume

sonic hill
last rose
sonic hill
#

No worries

vivid lintel
#

I submitted the physics cup solution💀

#

I'm cooked fs

frail lion
#

Wym physics cup solution

vivid lintel
#

google it

frail lion
#

Oh ok bro

hushed sphinx
#

As distinct from the mathematics mug, or the chemistry chalice.

frail lion
#

Mathematics mug

#

Sounds pretty

#

Cool

green trail
ivory fractal
#

it doesnt ask for it tho.

#

it asked for synthetic division

green trail
#

Why did you put Denominator equals to zero ? @ivory fractal

ivory fractal
green trail
#

If then the function will be not defined

#

In that question, what do you have to find the value of x or just synthetic division to find quotient and remainder ?

#

@ivory fractal

ivory fractal
green trail
ivory fractal
#

yes

green trail
#

Now you understood?

ivory fractal
#

some other dude said it was x+12 or x+10

#

idk where they got those answers from

green trail
short olive
#

the fuck is calc

ivory fractal
#

what i got was

green trail
ivory fractal
green trail
ivory fractal
#

Oh ok thx

green trail
frail lion
worldly blaze
hidden leaf
#

what is this diddyblud doing on the calculator

frail lion
spring jolt
#

How do you learn solving logarithmic equations and exponential. My brain is wired to find one way/formula to solve all of the same types of questions, but these vary so much it’s hard.

median spear
#

Questions will help you understand concepts in better way

spring jolt
#

Because all of pre calc up to this has been pretty like

#

Do these steps, and i’ve mastered it all

#

But this one has stumped me

ivory fractal
#

Since im learning polynomial division/synthetic division, thats how i’d verify for part a?

raw hill
#

If you don’t know factor theorem then that’s how they probably want it

ivory fractal
#

remainder theorem or factor theorem

#

i’ve learnt them too

#

but im unsure

#

what to use

#

factor theorem is finding the zeros right?

raw hill
#

note that b being a root is equivalent to (x-b) being a factor of p(x)

ivory fractal
#

is that the same as f(c) (x-c)

raw hill
ivory fractal
#

oh yes that

spark anchor
#

.

frail lion
#

Man somebody got any good questions

#

Maths physics

frail lion
#

1998•2^1995

#

@west ice

west ice
#

hmmcat yeah that's right I think

#

Congrats

frail lion
#

Yeah man

#

Any others

#

I mean any other questions

west ice
frail lion
#

Rn im craving questions

#

I wanna solve i don't wanna stop

obsidian monolithBOT
#

Fionna The Unemployed

west ice
frail lion
#

Bro from where have ya given me this question

#

This is not some unsolvable question typo right ?

#

I mean I have a sussy feeling

west ice
#

Do you want the answer?

frail lion
#

Nah

#

Jus asking

west ice
west ice
frail lion
#

I do have a pen and a paper

#

And a gaming chair

west ice
frail lion
#

What else is needed

#

I wanna know

west ice
#

Some knowledge in 2D coordinate and calculus-derivative

#

That's also a hint catthink

deft jetty
#

very nice problem

west ice
#

Yes I suck at algebra I know

deft jetty
#

i like it both cuz algebra but also cuz it reminds me of like a weaker moving sofa problem

frail lion
#

I mean I lowkey think we'll have to think about the

#

Critical position

west ice
frail lion
#

Yk the corner

#

When it's turning

#

And form some

#

Right triangles there

west ice
#

This would waste a good amount of your time

frail lion
#

Wait hol up

#

I cracked it

#

Man im fucking genius

#
  1. Something???
#

Yeah or no

#

3.7

#

Precisely

west ice
#

Okay my connection just failed me lmao

#

What did you get

frail lion
west ice
#

Okay it's not even loading that message

#

Wth

frail lion
#

3.7

west ice
west ice
#

Congrats

frail lion
#

Man hell yeah

frail lion
#

Diabolical

west ice
#

Light mode isn't a bad thing

frail lion
#

I mean it doesn't feel good

#

Hurts my eyes

west ice
#

Or maybe only I don't get hurt

frail lion
#

Only i doesn't 💀💀

#

Ok this not an English server

#

It's math server

west ice
#

Oh lmao

#

Sorry I have a bit of a headache

#

Try this one I found

frail lion
#

So your headache accounted to your grammatical error?

frail lion
#

Send

west ice
#

I can't even think of anything

#

It's algebra

#

$\sqrt{5x^2+14x+9}-\sqrt{x^2-x-20}=5\sqrt{x+1}$

obsidian monolithBOT
#

Fionna The Unemployed

west ice
#

Solve for x

frail lion
#

Send bro what

#

Ok network error

#

Now I see it

west ice
#

I also have this

frail lion
#

These seem more like

#

Solving

#

Yk unpaid labour type

west ice
frail lion
#

Like they don't require brain

frail lion
#

Take the second term in lhs to rhs

#

Square both side

#

Then jus solve solve

west ice
#

happy Yes you can, but these problem have time limit of only 10-20 min

#

And that's gonna be a quartic

frail lion
#

20 min too much

frail lion
west ice
frail lion
#

Okie dokie vroski

west ice
#

happy What I want to say is, there's a way to solve this in only 3min

#

But you could try what you said

frail lion
#

Yeah you're right mam

#

I'm sowy too long equation

#

Can't solve

uncut star
#

That is why we have wolfram alpha

#

To deal with this

frail lion
#

Wait fuck i fcked up in front of da homies

frail lion
west ice
frail lion
uncut star
#

I mean it isn't like I would have tried something different

west ice
#

So that's okay to not solve it breadhehe

uncut star
#

I would have squared it too

#

So I am in the same boat to be honest

uncut star
#

Is it hard

frail lion
#

Try once

#

I aint gon tell

west ice
frail lion
#

Otherwise you'll form a perspective

frail lion
uncut star
west ice
#

If you do induction proof it's not that hard

west ice
frail lion
#

Don't tell him

#

Anything

uncut star
#

Looks like it is telescopic

#

All terms except n+1 and some powers of 2 cancel

uncut star
frail lion
uncut star
frail lion
#

It ain't numerical

uncut star
#

From 1 to n-2

#

So( 2^n-2)(n+1)

west ice
#

happy Have you guys seen this, if so Im gonna delete it

west ice
#

Sure take a good look and then I'll delete it

uncut star
#

But that will spoil it

#

I haven't even attempted that question

frail lion
#

I've taken ss

#

Delete if ya

#

Want to

west ice
#

happy imma save this one for Astreae to try

frail lion
#

Whos astreae

west ice
#

Can't spoil the problem here so I have to delete it

#

,av aster.aequoris

obsidian monolithBOT
#
aster.aequoris's Avatar

Click here to view the image.

west ice
#

I don't want to ping her

#

Damn that again, I should sleep

frail lion
#

Ok broski

uncut star
#

It depends on what i try

#

And it feels like i just stumbled upon it

#

Well that seems to be the case with pretty much all of maths

west ice
#

Have any of you learnt 3D coordinate ?

uncut star
#

I haven't but sam probably has

west ice
#

happy I have a 3D coordinate problem if any of you want to try

frail lion
#

Send once

west ice
#

Do you guy learn the sphere equation?

frail lion
#

No don't send bro I haven't learnt

#

I thought I might do it

#

With raw brain but

frail lion
west ice
#

It's math happy

obsidian monolithBOT
#

Fionna The Unemployed

frail lion
#

I aint reading allat

#

Is it just

#

Net force zero ?

#

Yk equilibrium sepher

west ice
#

It's not motion physics

#

It's Math

west ice
frail lion
#

Then idk I'm doing 12th calculus now a days

#

I have 11 th too to manage

#

And 12th maths too

#

So it will take me time to reach

strong python
#

You're from 11th?

frail lion
strong python
#

India

west ice
#

Yeah

frail lion
#

Yeah

strong python
#

Cool same bro

west ice
#

I only show those questions above to Indian

frail lion
strong python
#

Yeah

#

Racist

west ice
#

Cuz no one in there mind willing to do it and have enough knowledge to do hmmcat

#

Sure sure whatever KEK

frail lion
#

Nah actually man only some people here in India are actually intelligent

#

Or have atleast basic civic sense

#

But yeah out of topic

frail lion
west ice
#

,ti

obsidian monolithBOT
#

The current time for fionna_fx is 11:50 PM (+08) on Mon, 03/11/2025.

west ice
#

It's time to sleep

#

happy my mind is not working properly at this time

uncut star
sweet hearth
sweet hearth
#

I have never studied actual 3d geometry, but this closely resembles normal geometric problem atleast in its core logic,so I am gonna extrapolate from that

The point (E) and vector direction should give us the equation of the tangent in terms of s,we know that the sphere is at all moments passing through point M,so we need to find the equation of the family of spheres from these two things,the eq of the constantly moving tangent and the fixed point we already know(M)

than we would probably get the coordinates of the center(I) in terms of s,and we need to find a way to eliminate s using the fact that R is a known quantity perhaps? idk really

for the cone thing,we are already given the radius is constant,so essentially we need to form an equation between the height and radius of the cone with the radius of sphere,which comes out to be

#

R square= r square+h square.

after this we would probably need to eliminate h or r from the equation 1/3πr square h by putting the value from the equation we found, and than use some calculus or something to find the maximum volume

#

also btw I might be wrong about the family of spheres thing,i thought because we have a family of circles technically there should be a family of spheres,which is just a best guess

#

😭holy yap bro no one is reading that

uncut star
waxen peak
#

too white

clever fox
#

My eyes ahh

brisk dragon
#

whats the biggest tip you guys can give me for ap pre cal?

raw hill
#

<@&268886789983436800>

frail lion
frail lion
wooden horizon
brisk dragon
#

what books or lectures can you recommend for me

wooden horizon
#

Also watch professor Leonard on youtube.

cloud valve
#

Idk how to differentiate them and it’s my last attempt

#

I am actually struggling with matching graphs so bad

vernal grail
sweet hearth
sharp wing
#

need help on solving x^3 - 3x less than our equal to sqrt(3)

sweet hearth
#

What exactly did you do? or like do you have any basic idea about what you have to do or do you have no idea at all?

fathom hearth
lone temple
#

can ayone help me understand the dx in integral🥺

frail lion