1.

li a 6tc.A=11 b ctaI C at6_estz

Answer»

C3>C1+C2+C3a+b+c+1 take outthen 2 columns are same so the value of derivative becomes 0hence Ans: 0

c2= c3+ç2take a+b+c common from second coloumn.Now in the det we get two coloumns are same. by properties of determiners.. If any two rows or coloumns are same in the det then the value of detreminent is 0 ..so the answer is =0



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