Write the element a23 of a 3 × 3 matrices A = (aij) whose elements aij are given by aij = .(CBSE 2015)

Question

Write the element a23 of a 3 &times; 3 matrices A = (aij) whose elements aij are given by aij = .(CBSE 2015)

Philoid · Accepted Answer

As by the definition given in question -

aij =

To find a23 just put i = 2 and j = 3

&there4; a23 =

Write the element a₂₃ of a 3 × 3 matrices A = (a_ij) whose elements a_ij are given by a_ij = .(CBSE 2015)