" 3."int(cos x)/(sin x+cos x)dx

int(cos3x)/(sin x)dx

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

int(cos x)/(sin^(3)x)dx

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

Evaluate int((3 sin x+ 4 cos x)/(4 sin x-3 cos x))dx

int(2 sin x+3 cos x+4)/(3 sin x+4 cos x+5)dx.

Evaluate int((3 sin x+ 4 cos x)/(4 sin x-3 cos x))dx

By using the properties of definite integrals, evaluate the integrals: underset(0)overset(pi/2)int(cos^3 x)/(sin^3 x + cos^3x)dx

int(sin x)/(cos3x*cos2x)dx