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Question
Construct a 2 x 2 matrix whose elements aij are given by
aij = 2i - j
Solution
We have aij = 2i - j
Now a11 = 2 x 1 - 1 = 1
a12 = 2 x 1 - 2 = 0
a21 = 2 x 2 - 1 = 3
a22 = 2 x 2 - 2 = 2
So the required matrix
A = `[(a_11 ,a_12),(a_21, a_22)]`
A = `[(1, 0),(3, 2)]`.
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