Given : Now Performing Row operation: R1=R1-R2 and R2=R2-R3Now opening the Determinant:= a(b + bc + c) + bc= abc + ab + ac + bcHence, Proved

Q. 195.0( 3 Votes )

Using properties

Answer :

Given :

Now Performing Row operation: R₁=R₁-R₂ and R₂=R₂-R₃

Now opening the Determinant:

= a(b + bc + c) + bc

= abc + ab + ac + bc

Hence, Proved

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