Let M 4 = I, (where I denotes the identity matrix) and M ≠ I, M 2 ≠ I and M 3 ≠ I. Then, for any natural number k, M −1 equals:

GATE Electronics and Communications (EC) 2016 Shift 1 Solved Paper

Question : 11 of 65

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Let M⁴ = I, (where I denotes the identity matrix) and M ≠ I, M² ≠ I and M³ ≠ I. Then, for any natural number k, M⁻¹ equals:

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