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प्रश्न
Check whether the following matrix is invertible or not:
`((2,3),(10,15))`
उत्तर
Let A = `((2,3),(10,15))`
Then, |A| = `|(2,3),(10,15)| = 30 - 30 = 0`
∴ A is a singular matrix.
Hence, A-1 does not exist.
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