Impossibruuu?

>>8442662
cleo knows all

mwahahahaha

>>8442662
It's already solved.
Just add C.

my name is vishnu lol

>>8442683
Agreed

>>8442683
I have to find out, what calculations lay behind that calculated integral, obviously!

>>8442662
Go learn a fuckton (and I do mean a fuckton) of trigonometric identities, and how to derive them.
I swear every fucking integration problem assigned by my professors is just an exercise in who can find the most obscure trig identities.

>>8442662
I hope you haven't abandoned this thread, OP, because I'm working on it, trying to replicate this answer. Bear with me

>>8443113
or just use the residue lemma

>>8442662
complete the square

>>8443237
ok, OP, here's what you do. I just spent an hour on this problem because I'm a retard.

factor out -a from the integrand.

complete the square (add (b^2-ac/a^2))

you should get (x+b/a)^2 - (b^2-ac)/a^2

use a sin substitution

you can handle it from here.

>>8443319
**factor out 1/sqrt(-a)

>>8442662
use convolution properties

File: scan.jpg (347KB, 2224x3152px) Image search: [Google]

347KB, 2224x3152px

>>8442662
I know I've got shitty handwriting, but I really had to see this through, it was good practice.

>>8443406
Handwriting is ok.
I like your thinking.

ways to handle integrals:
- some math books have tables with integrals.
- wolfram alpha or math software
- numerical integration