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

Evaluate: (i) int sec^(2)(7-4x)dx (ii) int(1)/(sin^(2)x cos^(2)x)dx

Evaluate : (i) int((4-5 cosx)/(sin^(2)x))dx , (ii) int((1-cos2x)/(1+cos2x)) dx (iii) int (1)/(sin^(2)x cos^(2)x) dx , (iv) int(cos2x)/(cos^(2)x sin^(2) x) dx

Evaluate the integrals int(dx)/(sin^2x cos^2x)

int(dx)/((sin^(2)x-4cos^(2)x))=?

int(dx)/(4sin^(2)x+9cos^(2)x)

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

int(dx)/(2sin^(2)x-3cos^(2)x+7)=

int(dx)/(2sin^(2)x-3cos^(2)x+7)=