int(d theta)/(sin^(4)theta+cos^(4)theta)

int _(0)^(pi//4) ( 4 sin 2 theta d theta )/(sin^(4) theta +cos^(4) theta )=

int _(0)^(pi//4) ( 4 sin 2 theta d theta )/(sin^(4) theta +cos^(4) theta )=

Evaluate int _(0)^(pi//2) (cos^(4) theta)/(sin^(4) theta + cos^(4) theta)d theta

I=int_(0)^( pi/4)(sin2 theta)/(sin^(2)theta+cos^(4)theta)d theta

int(d theta)/(sin theta cos^(3)theta) is equal to

int(2sin theta cos theta)/(sin^(4)theta+cos^(4)theta)d theta

The value of (1)/(8)(3-4cos2 theta+cos4 theta) is (A)cos4 theta(B)sin4 theta(C)sin^(4)theta(D)cos^(4)theta

int(sin^(6)theta+cos^(6)theta)/(sin^(2)theta cos^(2)theta)d theta=

The value of (2(sin^(6)theta+cos^(6)theta)-3(sin^(4)theta+cos^(4)theta))/(cos^(4)theta-sin^(4)theta-2cos^(2)theta) is :

int_0^(pi/4) (2sinthetacostheta)/(sin^4theta+cos^4theta)d theta