vectors-m

Question: If $\theta$ be the angle between two vectors a and b, then $\mathbf{a}.\mathbf{b}$ $\ge 0$ if

1) $0\le \theta \le \pi $

2) $\frac{\pi }{2}\le \theta \le \pi $

3) $0\le \theta \le \frac{\pi }{2}$

4) None of these

Solution:

Explanation: No Explanation

Scalar Product Dot Product

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