Evaluate `lim_(x to pi)((1+cosx)/(tan^(2)x)).`

Explanation

To evaluate the limit \( \lim_{x \to \pi} \frac{1 + \cos x}{\tan^2 x} \), we will follow these steps:

### Step 1: Substitute \( x = \pi \)
First, we substitute \( x = \pi \) into the expression to check if it results in an indeterminate form.

\[ \cos(\pi) = -1 \quad \text{and} \quad \tan(\pi) = 0 \]
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