Questions
If
then k is equal to:
detailed solution
Correct option is C
Using R3→R3−R2and R2→R2−R1we getΔ=a2b2c22aλ+λ22bλ+λ22cλ+λ2−4aλ−4bλ−4cλTake – 4λ common from R3, and applying R2→R2−2λR3 we getΔ=−4λ3a2b2c2111abc=λ4λ2a2b2c2abc111∴ k=4λ2Similar Questions
Let .The number of values of x for which is
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