# Check whether the following matrices are invertible or not: [1001] - Mathematics and Statistics

Sum

Check whether the following matrices are invertible or not:

[(1, 0),(0, 1)]

#### Solution

let A = [(1, 0),(0, 1)]

Then, |A| = |(1, 0),(0, 1)|
= 1 – 0
= 1 ≠ 0
∴ A is a non-singular matrix.
∴ A is invertible.

Concept: Inverse of Matrix
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