Evaluate: `int(sin^(3)x)/(cos x)dx`

Evaluate: int(1)/(sin^(3)x cos x)dx

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

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

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

Evaluate: int(1-sin x)/(x+cos x)dx

Evaluate: int(sin^(2)x)/(cos^(14)x)3dx

Evaluate: int(sin x)/(sin x-cos x)dx

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

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

Evaluate: ( i int(sin^(3)x-cos^(3)x)/(sin^(2)x cos^(2)x)dx (ii) int(5cos^(3)x+6sin^(3)x)/(2sin^(2)x cos^(2)x)dx