If two vectors \(\overrightarrow a\) and \(\overrightarrow b \) be such that \(\left| {\overrightarrow a + \overrightarrow b } \right| = \left| {\overrightarrow a - \overrightarrow b } \right|\), then the angle between them is

If two vectors \(\overrightarrow a\) and \(\overrightarrow b \) be

1.	If two vectors \(\overrightarrow a\) and \(\overrightarrow b \) be such that \(\left\| {\overrightarrow a + \overrightarrow b } \right\| = \left\| {\overrightarrow a - \overrightarrow b } \right\|\), then the angle between them is
A.	\(\frac{\pi }{4}\)
B.	\(\frac{\pi }{3}\)
C.	\(\frac{\pi }{2}\)
D.	None of these
Answer» D. None of these

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If two vectors \(\overrightarrow a\) and \(\overrightarrow b \) be such that \(\left| {\overrightarrow a + \overrightarrow b } \right| = \left| {\overrightarrow a - \overrightarrow b } \right|\), then the angle between them is

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