# Thread: Trigonometric Integrals

1. ## Trigonometric Integrals

Hello! I've stumbled upon another proof problem that I need help with

Show that for n is greater than or equal to 2,

pi/2 pi/2
(integral) sin^(n) x dx = (n-1)/n (integral) sin^(n-2) x dx
0 0

Thanks!

2. Hello,
Originally Posted by wyhwang7
Hello! I've stumbled upon another proof problem that I need help with

Show that for n is greater than or equal to 2,

pi/2 pi/2
(integral) sin^(n) x dx = (n-1)/n (integral) sin^(n-2) x dx
0 0

Thanks!
Produce the same method as here : http://www.mathhelpforum.com/math-he...tml#post270007