Let S be the set of all real values of λ such that a plane passing th – McqOptions

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1.	Let S be the set of all real values of λ such that a plane passing through the points (-λ2, 1, 1),(1, -λ2, 1)and (1 , 1, -λ2) also passes through the point (-1, -1, 1). Then, S is equal to
A.	\(\left\{ {\sqrt 3 , - \sqrt 3 } \right\}\)
B.	{3, -3}
C.	{1, -1}
D.	\(\left\{ {\sqrt 3 } \right\}\)
Answer» B. {3, -3}

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