Let a,b,c be positive and not all equal, the value of the determinant ∣∣
∣∣abcbcacab∣∣
∣∣ , is
A
+ive
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B
-ive
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C
zero
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D
none of these
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Solution
The correct option is C -ive Put a=1,b=2,c=3 in the given determinant Then, ∣∣
∣∣123231312∣∣
∣∣ =1(5)−2(1)+3(−7)=−18 So, determinant value will be negative.