Evaluate ∫sec2(x)dx\int \sec^2(x) dx∫sec2(x)dx.
tan(x)+C\tan(x) + Ctan(x)+C
−tan(x)+C-\tan(x) + C−tan(x)+C
sec(x)+C\sec(x) + Csec(x)+C
sin(x)+C\sin(x) + Csin(x)+C