If A = 0 1 - 1 0 , then which one of the following statements is not correct?

Question

If A = 0 1 - 1 0 , then which one of the following statements is not correct?, A 3 + I = A A 3 - I, A 4 - I = A 2 + I, A 2 + I = A A 2 - I, A 3 - I = A ( A - I )

MARKS App · Accepted Answer

A = 0 - 1 1 0 A 2 = 0 - 1 1 0 0 - 1 1 0 = - 1 0 0 - 1 A 3 = - 1 0 0 - 1 0 - 1 1 0 = 0 1 - 1 0 A 4 = 0 1 - 1 0 0 - 1 1 0 = 1 0 0 1 Option 1 A 3 + I = A A 3 - I 0 1 - 1 0 - 1 - 1 1 - 1 = 1 - 1 1 1 1 - 1 1 1 = 1 - 1 1 1 .....Correct Option 2 A 4 - I = A 2 + I 0 0 0 0 = 0 0 0 0 ....Correct Option 3 0 0 0 0 = 0 - 1 1 0 × - 2 0 0 - 2 = 0 2 - 2 0 .....Incorrect Option 4 A 3 - I = A ( A - I ) - 1 1 - 1 - 1 = 0 - 1 1 0 × - 1 - 1 1 - 1 = - 1 1 - 1 - 1 ......Correct.

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