engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Vector Algebra Magnitude and Directions of a Vector
If â is a unit vector in the xy-plane making an angle 30° with the positive x-axis, then what is â equal to?
1
\(\rm \dfrac{\sqrt{3}\hat{i}+\hat{j}}{2}\)
2
\(\rm \dfrac{\sqrt{3}\hat{i}-\hat{j}}{2}\)
3
\(\rm \dfrac{\hat{i}+\sqrt{3}\hat{j}}{2}\)
4
\(\rm \dfrac{\hat{i}-\sqrt{3}\hat{j}}{2}\)