Question

integrate (sin x)^4 dx

Answer 1

I think you'll need to rewrite this as Sin^2(x) (1-Cos^2(x))

Answer 2

and then do a lot of substitutions.. im really rusty on my integrals, haven't done math in ages, so uhmm...

Answer 3

give me a second

Answer 4

thanks, but is there another way, I don't quite get their explantions

Answer 5

and wolfram's way is by using formulas, I'm am supposed to use identities