Teaching MPPSC Assistant Professor Mock Test Series 2025 Physical Sciences Mathematical Methods of Physics Vector Algebra and Vector Calculus
Calculate the cosine and sine of the angle between the vectors:
\( \mathbf{A} = 3\hat{i} + \hat{j} + \hat{k} \)
\( \mathbf{B} = -2\hat{i} + \hat{j} + \hat{k} \)
1
\( \sin(\theta) \approx -0.492 \) and \( \cos(\theta) \approx 0.871 \)
2
\( \cos(\theta) \approx -0.492 \) and \( \sin(\theta) \approx 0.871 \)
3
\( \sin(\theta) \approx 0.971 \) and \( \cos(\theta) \approx 0.129\)
4
None of the above