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

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

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

(i) int 1/(4sin^2x+5cos^2x) dx (ii) int (dx)/(cos^2 x+2 sin^2x)

If int(dx)/(cos2x+3sin^(2)x)=(1)/(a)tan^(-1)(b tanx)+c, then ab=

(i) int(cos^(3) x+ sin^(3) x)/(sin^(2) x.cos ^(2) x)dx " "(ii) int(cos2x)/(cos^(2) x sin^(2)x) dx

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

Evaluate: ( i int(cos x)/(1-cos x)dx or int(cot x)/(csc x-cot x)dx (ii) int(cos^(2)x-sin^(2)x)/(sqrt(1+cos4x))dx

Evaluate: (i) int(sin2x)/(a cos^(2)x+b sin^(2)x)dx (ii) int(cos x)/(2+3sin x)dx