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Question

A square matrix is having p number of rows. What is ‘j’ if aij is situated in the last row and second last column


A

2

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B

p + 2

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C

p - 1

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D

2p

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Solution

The correct option is C

p - 1


You know in a square matrix, the number of columns will be same as that of number of rows. Here the order is p × p. Given ‘j’ represents second last column number and the total number of columns is p. Therefore j = p-1.


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