MCQ
If $a = 3i - j + 2k,$ $b = 2i + j - k,$ then $a \times (a\,.\,b) = $
- A$3a$
- B$3\sqrt {14} $
- C$0$
- ✓None of these
✓
Answer
Correct option: D.
None of these
d
(d) $a \times (a\,.\,b)$ is not meaningful.
(d) $a \times (a\,.\,b)$ is not meaningful.
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