`int(cos^(2)x)/(1-sin x)dx`

int (cos x) / (1-sin x) dx

int(1+cos^(2)x)/(sin^(2)x)dx=

int(1-cos^2x)/(sin^2x)dx=?

int(1+cos^2x)/(sin^2x)dx=?

int(1)/(cos^(2)x+sin2x)dx

Suppose J=int(sin^(2)x+sin x)/(1+sin x+cos x)dx and K=int(cos^(2)+cos x)/(1+sin x+cos x)dx. If c is an arbitrary constant of integration then which of the following is/are correct

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

int(cos^(3)x)/((1+sin^(2)x)^(2))dx

" (2) "int(1+cos x)/(x+sin x)dx

int(cos x)/(sin x+1)dx