Find the principal value of: `cose c^(-1)(2)`

Explanation

To find the principal value of \( \csc^{-1}(2) \), we can follow these steps:

### Step 1: Set up the equation
Let \( y = \csc^{-1}(2) \). This means that \( \csc(y) = 2 \).

### Step 2: Convert to sine
Recall that \( \csc(y) = \frac{1}{\sin(y)} \). Therefore, we can rewrite the equation as:
\[
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