Question

Construct a 2×2matrix whose element aij,=2i-j
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Answer 1

Answer:

$\left[\begin{array}{ccc}1&0\\3&2\\\end{array}\right]$

Explanation:

Given aij = 2i-j

Therefore, a11=1

                 a12=0

                 a21=3

                 a22=2

Therefore the required matrix is

$\left[\begin{array}{ccc}1&0\\3&2\\\end{array}\right]$