MCQ
$\left[ {\left( {\vec a \times \,\vec b } \right) \times \,\left( {\vec a \times \,\,\vec c } \right)} \right]\,\,.\,\vec d\,\, = \,\,\,.........$
- A$\left( {\vec a \,\,.\,\,\vec d } \right)\,\,\left[ {\vec a \,\vec b \,\vec c } \right]$
- B$\left( {\vec c .\,\,\vec d } \right)\,\,\left[ {\vec a \,\vec b \,\vec c } \right]$
- C$\left( {\vec b \,\,.\,\,\vec d } \right)\,\,\left[ {\vec a \,\vec b \,\vec c } \right]$
- Dઆપેલ પૈકી એકપણ નહિ