A) \[\mathbf{a}\,.\,(\mathbf{b}\times \mathbf{c})=1\]
B) \[\mathbf{a}\,.\,(\mathbf{b}\times \mathbf{c})=3\]
C) \[(\mathbf{a}\times \mathbf{b})\,.\,\mathbf{c}=0\]
D) \[(\mathbf{c}\times \mathbf{a})\,.\,\mathbf{b}=1\]
Correct Answer: C
Solution :
\[\mathbf{a}.(\mathbf{b}\times \mathbf{c})=0\] or \[(\mathbf{a}\times \mathbf{b}).\mathbf{c}=0.\]
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