Teaching AP DSC School Assistant 2025 Mock Test Series Mathematics Vector Algebra Scalar and Vector Product
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
1
\(\sqrt {\frac{2}{3}} \)
2
\(\sqrt 2 \)
3
√3
4
2