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1. |
The number of distinct real values of λ, for which the vectors − λ2ˆi ˆj ˆk , ˆi − λ2ˆj ˆk and ˆi ˆj − λ2ˆk acoplanar, is |
A. | 0 |
B. | 1 |
C. | 2 |
D. | 3 |
Answer» D. 3 | |