Question

help with integration

Answer 1

I need to know how the integral of sin(x)cos(x) equals to 0.5sin^2(x) ?

Answer 2

let u = sin x du = cos x dx
int u du = .5 u^2 +C
substitute back for u
.5 sin^2 x + C

Answer 3

can't we solve it immediatly by considering sinx cosx is 0.5sin(2x) ?

Answer 4

*shru* if there's an identity for it, im horrible at trig so I dont know all the identities and things.

Answer 5

*shrug* is what i meant, lol