Let `A={:[(3,2,3),(-1,4,-2),(1,4,2)]:}` Find additive inverse of A.

Explanation

To find the additive inverse of the matrix \( A = \begin{pmatrix} 3 & 2 & 3 \\ -1 & 4 & -2 \\ 1 & 4 & 2 \end{pmatrix} \), we will follow these steps:

### Step 1: Understand the concept of additive inverse
The additive inverse of a matrix \( A \) is a matrix \( -A \) such that when \( A \) is added to \( -A \), the result is the zero matrix. Mathematically, this is represented as:
\[ A + (-A) = 0 \]

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