`int(dx)/(cos^4xsin^2x)`

if int(1-5sin^2x)/(cos^5xsin^2x)dx=f(x)/(cos^5x)+c then f(x)

int (3 cos^(2)x+4 sin^(2)x)/(cos^(2)xsin^(2)x)dx=

(i) int 1/ (cos^4x+sin^4x)dx (ii) int 1/(sin^4x+sin^2x cos^2x+cos^4x) dx

Evaluate: int(cos2xsin4x dx)/(cos^4x(1+cos^2 2x)

Evaluate: int(cos2xsin4x dx)/(cos^4x(1+cos^2 2x)

If I_(1)=int_(0)^(pi//2)(cos^(2)x)/(1+cos^(2)x)dx,I_(2)=int_(0)^(pi//2)(sin^(2)x)/(1+sin^(2)x)dx , I_(3)=int_(0)^(pi//2)(1+2cos^(2)x.sin^(2)x)/(4+2cos^(2)xsin^(2)x)dx , then

Solve the differential equation (dy)/(dx)=cos^3xsin^4x+xsqrt(2x-1) .

int(dx)/(cos(2x)cos(4x))=

int(dx)/(cos(2x)cos(4x))=

int(dx)/(cos(2x)cos(4x))=