int(3cos x)/(tan x-2)

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

int(cos^(2)x)/(1+tan x)dx

Evaluate: (i) int(1+tan x)/(1-tan x)dx (ii) int(cos x)/(cos(x-a))dx

int (cos (tan ^ (- 1) x) + sin (tan ^ (- 1) x)) / (1 + x ^ (2)) dx

int e^(3x)((3+tan x)/(cos x))dx

int e^(3x)((3+tan x)/(cos x))dx

Evaluate: int cos x log(tan(x)/(2))dx

Evaluate: (i) int(sec x)/(log(sec x+tan x)dx) (ii) int(cos ecx)/((log tan x)/(2))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