Q. 85.0( 2 Votes )

Mark the tick aga A. 2

B. 6

C. 24

D. 120

Answer :

To find: Value of


We have,



Taking 2 common from R2



Taking 6 common from R3



Applying



Applying



Expanding column 1


12 [1{(1)(14)-(6)(2)}]


12 [1{(14)-(12)}]


12[2]


24

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