engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Mathematics Vector Algebra Scalar and Vector Product
Find the value of λ such that the vectors \(\rm\vec{a}\) = 2î + λĵ + k̂ and \(\rm\vec{b}\) = î + 2ĵ + 3k̂ are orthogonal:
1
0
2
1
3
\(\frac{3}{2}\)
4
\(−\frac{5}{2}\)