Answer:
The given system of
equations can be expressed as AX = B, where
= ?11 0
Therefore A is
non-singular matrix so A?1 exists and given system has a unique
solution.
A11 =
(?1)1+1.?5 = ?5
A12 =
(?1)1+2.3 = ?3;
A21 =
(?1)2+1(?3) = 3;
A22 =
(?1)2+2 .4 = 4
adj
Now AX = B
On equation, we
get
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