Question

Integrate tan x

Answer 1

Please help me from the bottom up here cause I am quite lost! Thanks!

Answer 2

well, this is something most calculus students had to memorize

Answer 3

but you can use u-sub: let u =cos x, so du = -sin x dx

Answer 4

This isn't something to really memorize. Just notice that tanx is really sinx/cosx and do a substitution.

Answer 5

Bah! Of course! I meant tan 2A! I'll start a new question, thanks guys