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Question

If A = [145326] then second element of second row of 3A = _____.


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Solution

Here A = [145326] so 3A will be obtained by multiplying every element of A by 3.

So 3A=[3×13×43×53×33×23×6]

=[312159618] So the second element of second row of this matrix will be 6, which is the correct answer.


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