defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Vector Algebra Scalar and Vector Product
Let \(\overrightarrow{\mathrm{a}}\) and \(\overrightarrow{\mathrm{b}}\) be two unit vectors such that the angle between them is \(\frac{\pi}{3}\). If \(λ \vec{a}+2 \vec{b}\) and \(3 \vec{a}-λ \vec{b}\) are perpendicular to each other, then the number of values of λ in [–1, 3] is :
1
3
2
2
3
1
4
0