/sci/ - Science & Math » Thread #11535641

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Anonymous Sun 05 Apr 17:33:59 2020 No.11535641 View Reply Original Report

Quoted By: >>11536359 >>11537346 >>11538052 >>11538175 >>11539219

Can /sci/ solve this?

Anonymous

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Anonymous Sun 05 Apr 2020 17:38:06 No.11535647 Report

Quoted By:

Trivial and left to OP as an exercise.

Anonymous

Anonymous Sun 05 Apr 2020 21:47:26 No.11536359 Report

Quoted By: >>11537336 >>11537537

>>11535641
What's a trig substitution OP?

Anonymous

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Anonymous Mon 06 Apr 2020 02:35:06 No.11537336 Report

Quoted By: >>11537345

>>11536359
My highest level of math knowledge is college algebra

Anonymous

Anonymous Mon 06 Apr 2020 02:37:23 No.11537345 Report

Quoted By: >>11537379

>>11537336
Algebra is a pretty high level topic, anon, how the fuck do you know algebra without knowing basic integral calculus?

Anonymous

Anonymous Mon 06 Apr 2020 02:37:26 No.11537346 Report

Quoted By:

>>11535641
those are some weird powers on the top
brainlet.jpg
It is arctan(x/carrot) evaliated from 0 to 1 I think btw

Anonymous

Anonymous Mon 06 Apr 2020 02:49:24 No.11537379 Report

Quoted By:

>>11537345
Well I might've skipped it in highschool since I started taking college classes halfway through it and only needed a couple math credits.
I vaguely recognize it but don't remember how to do it at all.

Anonymous

Anonymous Mon 06 Apr 2020 03:55:22 No.11537537 Report

Quoted By: >>11538145

>>11536359
idk
but if sin(x) ~= x for small x,
then can you write $\frac{1}{\sqrt{a^2-x^2}}=\frac{1}{\sqrt{a^2-sin^2(\frac{x}{\infty})}}$ , then substitute $cos^2(\frac{x}{\infty})=1-sin^2(\frac{x}{\infty})$ , multiply the whole thing by $a$ , then solve for $\int_0^1 \frac{dx}{a\,cos^2(\frac{x}{\infty})}=\int_0^1 \frac{dx}{a}$ where $a=carrot$ ?

Anonymous

Anonymous Mon 06 Apr 2020 09:09:20 No.11538052 Report

Quoted By:

>>11535641
This is literally just a basic calculus question. The problem is du/(sqrt(a^2 - x^2)) with the antiderivative being arcsin(x/a). This is a definite integral, so
arcsin(1/a) - arcsin (0/a). There is your answer.

Anonymous

Anonymous Mon 06 Apr 2020 10:16:04 No.11538145 Report

Quoted By:

>>11537537
wtf just sub in x=a*sin(u)
cant believe im falling for this bait

Anonymous

Anonymous Mon 06 Apr 2020 10:53:01 No.11538175 Report

Quoted By:

>>11535641
final answer: arcsin(1/carrot), assuming carrot is not equal to 0.

Anonymous

Anonymous Mon 06 Apr 2020 18:16:56 No.11539201 Report

Quoted By:

answer is arcsin(1/carrot)

Anonymous

Anonymous Mon 06 Apr 2020 18:25:35 No.11539219 Report

Quoted By:

>>11535641
Arcsin(1/^)

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