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6:39 Let A be a 3 x 3 matrix such that A = I3. Then A is invertible and A- = 3A the above

6:39 Let A be a 3 x 3 matrix such that A = I3. Then A is invertible and A- = 3A the above option is true None of the mentioned A is invertible and A- = A -1 the above option is true 4G+ K ...

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