Evaluate : `int (" sec x + tan x")/(" sec x- tan x") " dx "`

Explanation

To evaluate the integral \( \int \frac{\sec x + \tan x}{\sec x - \tan x} \, dx \), we can follow these steps:

### Step 1: Rationalize the Expression
We start by multiplying and dividing the integrand by \( \sec x + \tan x \):
\[ \int \frac{(\sec x + \tan x)(\sec x + \tan x)}{(\sec x - \tan x)(\sec x + \tan x)} \, dx \]

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