Evaluate the integral dx x^ 2 +2a x + a^ 2

MATHEMATICS · Subjective · A Level · Mathematics · Integration · Integration

Problem

Evaluate the integral

\boxed{\displaystyle\int \frac{dx}{x^{2}+2a x\cos \alpha + a^{2}}},

where

a\;(\neq 0)

and

\alpha

are fixed real constants. Provide your answer in its simplest form, including the constant of integration

C