DeterminantHard
Question
The determinant 
=
=Options
A.
B.2 
C.3
D.none of these
Solution
Taking two common, applying C1 → C1 + C2 + C3
Applying C2 → C2 - C1 & C3 → C3 - C1
Applying C1 → C1 + C2 + C3
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