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Grade 12th passAlgebra

Its a problem from determinant maths 12th. In the solution how was LHS made equal to the multiplication of two matrices as given?

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Profile image of ketaka singh
7 Years agoGrade 12th pass
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Profile image of Arun
ApprovedApproved Tutor Answer7 Years ago
Dear student
 
If you actually multiply then you get the same matrix.
 
Hope it helps
 
Regards
Arun (askIITians forum expert)