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Q)

If $\overrightarrow{\alpha}$ and $\overrightarrow{\beta}$ are non zero and different vector such that $|\overrightarrow{\alpha} + \overrightarrow{\beta}| = |\overrightarrow{\beta} - \overrightarrow{\alpha}|$, then the angle between $\overrightarrow{\alpha} $ and $\overrightarrow{\beta}$ is :


( A ) $\overrightarrow{\pi}{6}$
( B ) $\overrightarrow{\pi}{3}$
( C ) $\overrightarrow{\pi}{4}$
( D ) $\overrightarrow{\pi}{2}$

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