- #1

Castilla

- 241

- 0

[tex]\int_{0}^\frac{\pi}2sin^n xdx = \int_{0}^\frac{\pi}2cos^n xdx[/tex].

I have tried unsucessfully integration for parts and I don't see how can I make some substitution. Maybe you can help me to justify this equation?

(Note.- The fraction in the upper limit has a pi)

Thanks.