Answer:
The given system of
equations can be expressed as
AX = B,
where
and
Therefore A is
non-singular matrix so A?1 exists and given system has a unique
solution.
A11 =
(?1)1+1.2 = 2;
A12 =
(?1)1+2.3 = ?3;
A21 =
(?1)2+1? 2 = ?2;
A22 =
(?1)2+2 .5 = 5;
Now
On equating, we
get x = ?1, y = 4
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