1.

A unit vector perpendicular to each of the vector 3i+2j+4k and 2i+j-k is,

Answer»

`+- 6i+8j+k/sqrt(101)`
`+- 6i-8j+k/sqrt(104)`
`+- 6i-8j-k/sqrt(101)`
`+- 6i-8j-4k/sqrt(101)`

ANSWER :A


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