Two vector $A$ and $B$ have equal magnitudes. Then the vector $\mathop A\limits^ \to + \mathop B\limits^ \to $ is perpendicular to
Two vector $A$ and $B$ have equal magnitudes. Then the vector $\mathop A\limits^ \to + \mathop B\limits^ \to $ is perpendicular to
- A
$\mathop A\limits^ \to \times \mathop B\limits^ \to $
- B
$\mathop A\limits^ \to - \mathop B\limits^ \to $
- C
$3\mathop A\limits^ \to \times 3\mathop B\limits^ \to $
- D
All of these
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