Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Vector Algebra Scalar and Vector Product
If \(\vec{a}\) and \(\vec{b}\) are unit vectors and θ is angle between them, then \(\frac{|\vec{a}-\vec{b}|}{2}\) is:
1
sin θ
2
sin 2θ
3
\(\sin \frac{\theta}{2}\)
4
More than one of the above
5
None of the above