(a b) (c d) - Vidyadip

Question

$(\bar{a} \cdot \bar{b}) \times(\bar{c} \cdot \bar{d})$

✓

Answer

This is meaningless because $\bar{a} \cdot \bar{b}, \bar{c} \cdot \bar{d}$ are scalars and cross product of two scalars is not

defined.

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