" (ii) "int(cos2x)/(cos^(2)x*sin^(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

int(cos2x)/(sin^(2)xcos^(2)x)dx=

int(cos2x)/((cos x+sin x)^(2))dx

Evaluate: (i) int(sec x)/(sec2x)dx (ii) int(cos2x)/((cos x+sin x)^(2))dx

int(sin2x)/(cos2x)dx

Evaluate: underset(0)overset(pi//2)int(cos^2x)/(cos^2x+4sin^2x)dx

Evaluate : (i) int(cos2x+2sin^(2)x)/(sin^(2)x)dx (ii) int(2cos^(2)x-cos2x)/(cos^(2)x)dx

int(1)/(cos2x+sin^(2)x)dx

int(cos2x)/(sin x)dx

int(1)/(cos2x+sin^(2)x)dx=