If (1, 2, 4) and (2, -3λ, -3) are the initial and terminal points of the vector \(\vec { i } \) + 5\(\vec { j } \) – 7\(\vec { k } \) then the value of λ …………………..
A. \(\frac{7}{3}\)
B. –\(\frac{7}{3}\)
C. \(\frac{5}{3}\)
D. \(\frac{-5}{3}\)
Answer:B
If (1, 2, 4) and (2, -3λ, -3) are the initial and terminal points of the vector \(\vec { i } \) + 5\(\vec { j } \) – 7\(\vec { k } \) then the value of λ …………………..
A. \(\frac{7}{3}\) B. –\(\frac{7}{3}\) C. \(\frac{5}{3}\) D. \(\frac{-5}{3}\)