The vector \overrightarrow{a} lies in the plane of vectors \overrightarrow{b} and \overrightarrow{c}. Which one of the following is correct?

Correct Answer is : →a⋅(→b×→c)=0

\overrightarrow{a} \cdot(\overrightarrow{b} \times \overrightarrow{c})=0

\overrightarrow{a} \cdot(\overrightarrow{b} \times \overrightarrow{c})=1

\overrightarrow{a} \cdot(\overrightarrow{b} \times \overrightarrow{c})=-1

\overrightarrow{a} \cdot(\overrightarrow{b} \times \overrightarrow{c})=3

UPSC NDA I 2011 Mathematics Paper

Question : 55 of 120

Marks: +1, -0

The vector

→

lies in the plane of vectors

→

and

→

. Which one of the following is correct?

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