If for the matrix A = [(α,-2),(-2,-α)], |A^3| = 125, then the value of α is :

If for the matrix A = \(\begin{bmatrix} \alpha & -2 \\[0.3em] -2 & -\alpha \end{bmatrix}\), |A³| = 125, then the value of α is :

[(α,-2),(-2,-α)]

(a) ±3

(b) -3

(c) ±1

(d) 1

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Option : (a) ±3

5 views Answered 2023-02-05 15:29

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