`int cosxsin^-4x`dx

intdx/(cosxsin^2x)

int sin^2(4x+3)dx

int cos^4 x dx

int(sinxcosx)/(sin^4x+cos^4x)dx

If the anti derivative of int sin^4x/x dx is f(x) then int(sin^4(p+q)x)/x dx in terms of f(x) is

If a=sinxcos^3x and b=cosxsin^3x then

d/dx(cosx.sin^-1x)

If -pi//2ltxltpi//2 , and the sum to infinite terms of the series cosx+(2)/(3)cosxsin^(2)x+(4)/(9)cosxsin^(4)x+ . . . if finite then

(i) int sin 2x. cos5x dx " "(ii) int(sin 4x)/(sin x) dx

Evaluate: int1/(sin^4x+cos^4x)dx