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Write Minors and Cofactors of the elemen...

Write Minors and Cofactors of the elements of following determinants:
(i) ` {:[( 2,-4),(0,3)]:}" " {:[( a,c),( b,d) ]:}`

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The correct Answer is:
` M_11 =3, M_12 =0, M_21 =-4 .M_22 = 2, A_11=3,A _12 = 0,A_21=4,A_22=2 `
(ii) ` M_11 =d,M_12=b,M_21 =c, M_22 =aA_11 =d,A_12 =-b,A_21 =-c ,A_22 =a `
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