Evaluate : `tan(cos^-1(-7/25))`

Explanation

To evaluate \( \tan(\cos^{-1}(-\frac{7}{25})) \), we can follow these steps:

### Step 1: Let \( \theta = \cos^{-1}(-\frac{7}{25}) \)
This means that \( \cos(\theta) = -\frac{7}{25} \).

### Step 2: Identify the range of \( \theta \)
Since \( \theta = \cos^{-1}(-\frac{7}{25}) \), \( \theta \) lies in the interval \( [\frac{\pi}{2}, \pi] \).

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