Find the value of λ so that the vectors \(2 i-4 \hat{j}+\hat{k}\) and \(4 i-8 \hat{j}+\lambda \hat{k}\) are parallel.
A. -1
B. 3
C. -4
D. 2
Answer:D
Find the value of λ so that the vectors \(2 i-4 \hat{j}+\hat{k}\) and \(4 i-8 \hat{j}+\lambda \hat{k}\) are parallel.
A. -1 B. 3 C. -4 D. 2