Integration of trig functions: int sin^2 x cos^4 x dx
[tex]\int sin^2xcos^4xdx[/tex] [tex]\int(1-cos^2x)(cos^4x)[/tex] [tex]\int(cos^4x-cos^6x)dx[/tex] [tex]\cos^2 x = \frac {1 + \cos 2x}2[/tex] [tex]\frac{1}{2}\int cos^4xdx-\frac{1}{2}\int cos^6xdx[/tex] [tex]\fra...