Let →c be a vector perpendicular to the vectors →a=^i+^j−^k and – InterviewSolution

1.	Let →c be a vector perpendicular to the vectors →a=^i+^j−^k and →b=^i+2^j+^k. If →c⋅(^i+^j+3^k), then the value of →c⋅(→a×→b) is equal to
Answer» Let $\to c$ be a vector perpendicular to the vectors $\to a =^i +^j -^k$ and $\to b =^i + 2^j +^k .$ If $\to c \cdot (^i +^j + 3^k),$ then the value of $\to c \cdot (\to a \times \to b)$ is equal to

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