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

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Question : 11

Total: 65

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:

M^{4k + 1}
M^{4k + 2}
M^{4k + 3}
M^4k

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