Sum
identify the following matrix is singular or non-singular?
`[(7, 5),(-4, 7)]`
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Solution
Let A = `[(7, 5),(-4, 7)]`
∴ |A| = `|(7, 5),(-4, 7)|`
= 49 + 20
= 69 ≠ 0
∴ A is a non-singular matrix.
Concept: Types of Matrices
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