1.

The vectors λi^+j^+2k^, i^+λj^-k^ and 2i^-j^+λk^ are coplanar, if λ = (a) –2 (b) 0 (c) 1 (d) –1

Answer» The vectors λi^+j^+2k^, i^+λj^-k^ and 2i^-j^+λk^ are coplanar, if λ =

(a) –2

(b) 0

(c) 1

(d) –1


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