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Find minors and cofactors of all the elements of the determinant |{:(1,-2),(4,3):}| |
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Answer» COFACTOR : `A_(11)=(-1)^(1+1)M_(11)=(-1)^2(3)=3` `A_(12)=(-1)^(1+2)M_(12)=(-1)^3(4)=-4` `A_(21)=(-1)^(2+1)M_(21)=(-1)^3(-2)=2` `A_(22)=(-1)^(2+2)M_(22)=(-1)^4(1)=1 |
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