Evaluate: `int1/(a^x\ b^x)\ dx`

Explanation

To evaluate the integral \( \int \frac{1}{a^x b^x} \, dx \), we can follow these steps:

### Step 1: Rewrite the integrand
The integrand can be rewritten using the properties of exponents:
\[ \frac{1}{a^x b^x} = \frac{1}{(ab)^x} = (ab)^{-x} \]
Thus, we can express the integral as:
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