`intdx/(1+cos^2x)`

intdx/(cosxsin^2x)

intdx/(2+sin^2x)

Integrate I = intdx/(a^2cos^2x+b^2sin^2x)

intdx/(2+sin^2x )

intdx/(x(1+x^2))

intdx/(x^2+1)^2

intdx/(e^x-1)^2

intdx/(4sin2xcos^2x)

intdx/(sin^2xcosx)

Integrate the following: int{(5cos^3x+2sin^3 x)/(2sin^2 x*cos^2 x)+sqrt(1+sin2x)+(1+2sin x)/(cos^2x)+(1-cos2x)/(1+cos 2x)}dx