Integrate the following w.r.t.x.
`x sin^(2)x`

Explanation

To integrate the function \( x \sin^2 x \) with respect to \( x \), we will use the integration by parts method. Here’s a step-by-step solution:

### Step 1: Identify \( u \) and \( dv \)
We will let:
- \( u = x \) (which we will differentiate)
- \( dv = \sin^2 x \, dx \) (which we will integrate)

### Step 2: Differentiate \( u \) and Integrate \( dv \)
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