If the angle between two non-zero vectors a and b is , then = ___… - Vidyadip

Question

If the angle between two non-zero vectors $\vec{a}$ and $\vec{b}$ is $\theta$, then $\cos \theta=$ ___________ .

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Answer

$\frac{\vec{a} \cdot \vec{b}}{|\vec{a}||\vec{b}|}$

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