The two vectors a = \(2 \hat{i}+\hat{j}+3 \hat{k}\) and b = 4 \hat{i}-\lambda \hat{j}+6 \hat{k} ae parallel, if λ is equal to
A. 2
B. -3
C. 3
D. 2
Answer:D
The two vectors a = \(2 \hat{i}+\hat{j}+3 \hat{k}\) and b = 4 \hat{i}-\lambda \hat{j}+6 \hat{k} ae parallel, if λ is equal to
A. 2 B. -3 C. 3 D. 2