MCQ
The angle between vectors $\vec a$ and $\vec b$ is $\frac{\pi }{6}$. The angle between vectors $ - 3\vec a$ and $ 2\vec b$ is
- A$\frac{\pi }{3}$
- B$\frac{\pi }{2}$
- C$\frac{7\pi }{6}$
- ✓$\frac{5\pi }{6}$
✓
Answer
Correct option: D.
$\frac{5\pi }{6}$
d
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