Draw the graph of `y=tan^(-1)x+cot^(-1)x`

Explanation

To draw the graph of the function \( y = \tan^{-1} x + \cot^{-1} x \), we can follow these steps:

### Step 1: Understand the Inverse Trigonometric Functions
The functions \( \tan^{-1} x \) (arctangent) and \( \cot^{-1} x \) (arccotangent) are defined as follows:
- \( \tan^{-1} x \) gives the angle whose tangent is \( x \).
- \( \cot^{-1} x \) gives the angle whose cotangent is \( x \).

### Step 2: Use the Identity
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