If a, b, c are mutually perpendicular vectors having magnitudes 1… - Vidyadip

MCQ

If $\vec{a}, \vec{b}, \vec{c}$ are mutually perpendicular vectors having magnitudes 1, 2, 3 respectively, then $\left[\begin{array}{lll}\vec{a}+\vec{b}+\vec{c} & \vec{b}-\vec{a} & \vec{c}\end{array}\right]$ = ______.

A
6
B
0
✓
12
D
18

✓

Answer

Correct option: C.

12

C

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