The system of linear equations \lambda x+y+z=3 x-y-2 z=6 -x+y+z=\mu has

Correct Answer is : infinite number of solutions for λ=−1 and all µ=3

infinite number of solutions for \lambda\neq-1 and all µ

infinite number of solutions for \lambda=-1 and all \mu=3

unique solution for \lambda = -1 and \mu=3

WBJEE 2012 Math Solved Paper

Question : 62 of 80

Marks: +1, -0

The system of linear equations
λx+y+z=3
x−y−2z=6
−x+y+z=µ has

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