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If A = [1-1121-3111], 10B = [422-50∞1-23] and B is the inverse of matrix A, then α = ______ - Mathematics and Statistics

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Question

If A = `[(1, -1, 1),(2, 1, -3),(1, 1, 1)]`, 10B = `[(4, 2,2),(-5, 0, ∞),(1, -2, 3)]` and B is the inverse of matrix A, then α = ______

Options

  • –2

  • –1

  • 2

  • 5

MCQ
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Solution

5

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Chapter 1.2: Matrics - MCQ
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