Evaluate the following integrals:
.w.

Given

Dividing the numerator and denominator by cos² x,

Putting tan x + 2 = t so that sec² x dx = dt,

We know that

7

Evaluate the following integrals:

8

Evaluate the following integrals:

10

Evaluate the following integrals:

11

Evaluate the following integrals:

Evaluate the following integrals:.w.