" 8."int((cot x)/(sin x)-tan^(2)x-(tan x)/(cos x)+(2)/(cos^(2)x))dx

int(sin2x+2tan x)/((cos^(6)x+6cos^(2)x+4))

int(1+cos4x)/(cot x-tan x)dx

int(1+cos4x)/(cot x-tan x)dx

int(cos8x-1)/(tan2x-cot2x)dx

int(cos8x-1)/(tan2x-cot2x)dx

int(sqrt(tan x))/(sin x cos x)dx=

Evaluate: (i) int(1-cos x)/(1+cos x)dx (ii) int{3sin x-4cos x+(5)/(cos^(2)x)-(6)/(sin^(2)x)+tan^(2)x-cot^(2)x}dx