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If A = [(1, 0), (-1, 7)] and A^2 = 8A + KI2, then K = .....

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If A = [(1, 0), (-1, 7)] and A2 = 8A + KI2, then K = ..... 

(a) 1 

(b) -1 

(c) 7 

(d) -7

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The correct option (d) -7

Explanation:

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