Practicing Success
Practicing Success
CUET Preparation Today
| The angle between the direction of \(\hat{i}\) and \(\hat{i}+\hat{j}\) is |
\(45^{\circ}\) \(180^{\circ}\) \(0^{\circ}\) \(90^{\circ}\) |
| \(45^{\circ}\) |
| \(\begin{aligned}\cos \theta &=\frac{\hat{i}\cdot (\hat{i}+\hat{j})}{|\hat{i}||\hat{i}+\hat{j}|}\\ &=\frac{1}{\sqrt{2}}\\ \text{So, }\theta &=45^{\circ}\end{aligned}\) |
