If \(\overrightarrow a \) and \(\overrightarrow b\) are two unit v – McqOptions

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1.	If \(\overrightarrow a \) and \(\overrightarrow b\) are two unit vectors inclined to x - axis at angles 30° and 120°, then \(\left\| {\overrightarrow a + \overrightarrow b } \right\|\) equals
A.	\(\sqrt {\frac{2}{3}} \)
B.	\(\sqrt 2 \)
C.	√3
D.	2
Answer» C. √3

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