?(sin x)^2 dx Is it x/2 - sin2x/4?? :cry:
O OrangeOne New member Joined Sep 8, 2010 Messages 30 Nov 20, 2010 #1 ?(sin x)^2 dx Is it x/2 - sin2x/4??
D DrSteve Banned Joined Nov 14, 2010 Messages 87 Nov 20, 2010 #2 Yes. Use the power reducing formula sin2x=1−cos2x2\displaystyle sin^2 x=\frac{1-\cos2x}{2}sin2x=21−cos2x to get an integrand which is fairly easy to integrate.
Yes. Use the power reducing formula sin2x=1−cos2x2\displaystyle sin^2 x=\frac{1-\cos2x}{2}sin2x=21−cos2x to get an integrand which is fairly easy to integrate.
