Q. 144.3( 4 Votes )

# Using properties of determinants, prove that: (CBSE 2012,2014)

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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