If A is an invertible matrix of order 2, then det `(A^(-1))`is equal to
(A) det (A) (B) `1/(det(A)` (C) `1` (D) `0`

Explanation

To solve the problem, we need to find the determinant of the inverse of an invertible matrix \( A \) of order 2. Let's go through the steps systematically.

### Step 1: Understanding the relationship between a matrix and its inverse
We know that for any invertible matrix \( A \), the product of \( A \) and its inverse \( A^{-1} \) equals the identity matrix \( I \):
\[ A \cdot A^{-1} = I \]

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