Question

If $|\vec{a}|=2$ and $|\vec{b}|=3$ and the angle between $\vec{a}$ and $\vec{b}$ is $120^{\circ }$, then the length of the vector $|{\frac{1}{2}}^{\vec{a}}-{\frac{1}{3}}^{\vec{b}}|$ is

• A. 2
• B. $\frac{1}{6}$
• C. 3
• D. 1

Answer 1

Answer: (C)

Correct answer is (c) 3