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**Check whether the following matrices are invertible or not:**

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

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#### 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.

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