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Construct a 2xx2 matrix A=[a(i j)] whose...

Construct a `2xx2` matrix `A=[a_(i j)]` whose elements `a_(i j)` are given by `a_(i j)={(|-3i+j|)/2,\ \ if\ i!=j(i+j)^2,\ \ if\ i=j`

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Let `A=[(a_(11),a_(12)),(a_(21),a_(22))]` as a `2xx2` matrix
As we have given
`a_(i j)={(|-3i+j|)/2`, if `i!=j`
`(i+j)^2`, if `i=j`
`implies a_(11)=(1+1)^2=4`,`a_(12)=|-3(1)+2|/2=1/2`,`a_(21)=|-3(2)+1|/2=5/2`,`a_(22)=(2+2)^2=16`
`A=[(4,1/2),(5/2,16)]`
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