Integrate the following functions
`cos x//1 - cos^(2)x`

Explanation

To solve the integral of the function \( \frac{\cos x}{1 - \cos^2 x} \), we can follow these steps:

### Step 1: Simplify the Denominator
We know from the Pythagorean identity that:
\[ 1 - \cos^2 x = \sin^2 x \]
Thus, we can rewrite the integral as:
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