Question

find the integration

Answer 1

I=∫(tan x +cot x)²dx

I=∫(tan²x +cot²x +2)dx

I=∫(sec²x+cosec²x-1+2)

I=∫sec²x dx+∫cosec²x dx

I=tan x+∫cosec²xdx

I=tanx -cotx+c