If →a=^i+^j−^k, →b=^i−^j+^k and →c is a unit vector perpendi – InterviewSolution

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1.	If →a=^i+^j−^k, →b=^i−^j+^k and →c is a unit vector perpendicular to the vector →a and coplanar with →a and →b, then direction cosines of a vector which is perpendicular to both →a and →c are
Answer» If $\to a =^i +^j -^k,$ $\to b =^i -^j +^k$ and $\to c$ is a unit vector perpendicular to the vector $\to a$ and coplanar with $\to a$ and $\to b,$ then direction cosines of a vector which is perpendicular to both $\to a$ and $\to c$ are

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