If A=[\table 1 , 2 , 3 ; 4 , 5 , 6 ; 7 , 8 , 9] then find adj A

Correct Answer is : [−36−36−126−36−3]

[\table -3 , 6 , -3 ; 6 , -12 , 3 ; -3 , 3 , -3]

[\table 3 , 8 , 3 ; 6 , 12 , 3 ; 3 , 3 , 3]

[\table -3 , 6 , -3 ; 6 , -12 , 6 ; -3 , 6 , -3]

[\table -3 , 6 , -3 ; 8 , -12 , 8 ; -3 , 6 , -3]

Matrices

Question : 28 of 36

Marks: +1, -0

A=[\table 1 , 2 , 3 ; 4 , 5 , 6 ; 7 , 8 , 9]

then find adj A$

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