Evaluate: `int(sin^(-1)x)^2\ dx`

Explanation

To evaluate the integral \( I = \int (\sin^{-1} x)^2 \, dx \), we will use integration by parts.

### Step 1: Choose Functions for Integration by Parts
We will use the integration by parts formula:
\[ \int u \, dv = uv - \int v \, du \]
Let:
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