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Home  >>  EAMCET  >>  Mathematics
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If $\overrightarrow {a} + \overrightarrow {b}+ \overrightarrow c=\overrightarrow {0}$ and $| \overrightarrow {a} |=3, | \overrightarrow {b}|=4$ and $|\overrightarrow {c}|=\sqrt {37},$ then the angle between $\overrightarrow{a}$ and $\overrightarrow {b}$ is :

\[\begin {array} {1 1} (a)\;\frac{\pi}{4} & \quad (b)\;\frac{\pi}{2}\\ (c)\;\frac{\pi}{6} & \quad (d)\;\frac{\pi}{3}\end {array}\]

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$(d)\;\frac{\pi}{3}$
answered Nov 7, 2013 by pady_1
 

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