Question

Integrate tan^2 (x)

Answer 1

i suggest rewriting tan^2(x) and sec^2(x)-1 and then integrating

Answer 2

since tan^2(x)=sec^2(x)-1
INT (tan^2(x)dx)=INT Sec^2(x)-1
since the d/dx(tanx)=sec^2(x)
the intergral is nothing more than
tan(x)-x+C

Answer 3

thanks:) i forgot about that identity lol, was trying to use sin and cos:)

Answer 4

oh no, sin and cos, would take you to places you do not want to got to :)