Find the value of `sin^(-1)1`.

Explanation

To find the value of \( \sin^{-1}(1) \), we can follow these steps:

### Step-by-Step Solution:

1. **Define the Inverse Function**:
Let \( y = \sin^{-1}(1) \). This means that \( \sin(y) = 1 \).

2. **Identify the Sine Function**:
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