If vectors P, Q and R have magnitude 5, 12 an | vedclass

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Question

(c) $|\vec P|\; = \;5$, $|\vec Q|\; = 12$ and $|\vec R|\; = 13$

$\cos 	heta = \frac{Q}{R} = \frac{{12}}{{13}}$

$	heta = {\cos ^{ - 1}}\left( {

Vedclass · Accepted Answer

${\cos ^{ - 1}}\frac{{12}}{{13}}$

Vedclass · Answer

(c) $|\vec P|\; = \;5$, $|\vec Q|\; = 12$ and $|\vec R|\; = 13$

$\cos 	heta = \frac{Q}{R} = \frac{{12}}{{13}}$

$	heta = {\cos ^{ - 1}}\left( {\frac{{12}}{{13}}} ight)$

If vectors $P, Q$ and $R$ have magnitude $5, 12$ and $13 $ units and $\overrightarrow P + \overrightarrow Q = \overrightarrow R ,$ the angle between $Q$ and $R$ is

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