Write the eccentricity of the hyperbola `9x^2-16 y^2=144.`

Explanation

To find the eccentricity of the hyperbola given by the equation \(9x^2 - 16y^2 = 144\), we can follow these steps:

### Step 1: Rewrite the equation in standard form
We start with the given equation:
\[ 9x^2 - 16y^2 = 144 \]
To rewrite it in standard form, we divide every term by 144:
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