(ii)
Answer:
(i)
Minor
of element 
=
(1 ? 0) = 1
Minor
of element 0 = M12 = 
=
(0 ?0) = 0
Minor
of element 0 = M13 = 
=
(0 ? 0) = 0
Minor
of element 0 = M21 = 
=
(0 ? 0) = 0
Minor
of element 1 = M22 = 
=
(1 ? 0) = 1
Minor
of element 0 = M23 = 
=
(0 ? 0) = 0
Minor
of element 0 = M31 = 
=
(0 ? 0) = 0
Minor
of element 0 = M32 =
=
(0 ? 0) = 0
Minor
of element 1 = M33 =
=
(1 ? 0) = 1
Cofactor
of element 1 = A11 = (?1)1+1M11
=
(?1)2.1 = 1
Cofactor
of element 0 = A12 = (?1)1+2 M12
=
(?1)3. 0 = 0
Cofactor
of element 0 = A13= (?1)1+3 M13
=
(?1)4 .0 = 0
Cofactor
of element 0 = A21= (?1)2+1 M21
=
(?1)3 .0 = 0
Cofactor
of element 1 = A22 = (?1)2+2 M22
=
(?1)4 .1 = 1
Cofactor
of element 0 = A23 = (?1)2+3 M23
=
(?1)5 .0 = 0
Cofactor
of element 0 = A31 = (?1)3+1 M31
=
(?1)4 .0 = 0
Cofactor
of element 0 = A32 = (?1)3+2 M32
=
(?1)5 .0 = 0
Cofactor
of element 1 = A33 = (?1)3+3 M33
=
(?1)6 .1 = 1
(ii)
Minor
of element 
=
(10 + 1) = 11
Minor
of element 0 = M12 = 
=
(6 ? 0) = 6
Minor
of element 4 = M13 = 
=
(3 ? 0) = 3
Minor
of element 3 = M21 = 
=
(0 ? 4) = ?4
Minor
of element 5 = M22 = 
=
(2 ? 2) = 2
Minor
of element ? 1 = M23 =
=
(2 ? 0) = 2
Minor
of element ? 1 = M23 =
=
(1 ? 0) = 1
Minor
of element 0 = M31 
=
(0 ? 20) = ?20
Minor
of element 
=
(?1 ? 12) = ?13
Minor
of element 2 = 
=
(5 ? 0) = 5
Cofactor
of element 1 = A11 = (?1)1+1 M11
=
(?1)2 . 11 = 11
Cofactor
of element 0 = A12 = (?1)1+2 M12
=
(?1)3 .6 = ?6
Cofactor
of element 4 = A13 = (?1)1+3 M13
=
(?1)4 . 3 = 3
Cofactor
of element 3 = A21 = (?1)2+1 M21
=
(?1)3 . (?4) = 4
Cofactor
of element 5 = A22 = (?1)2+2 M22
=
(?1)4 . 2 = 2
Cofactor
of element ?1 = A23 = (?1)2+3 M23
=
(?1)5 . 1 = ?1
Cofactor
of element 0 = A31 = (?1)3+1 M31
=
(?1)4 (?20) = ?20
Cofactor
of element 1 = A32 = (?1)3+2 M32
=
(?1)5 . (?13) = 13
Cofactor
of element 2 = A33 = (?1)3+3 M33
=
(?1)6 . 5 = 5
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