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Find the unit vector in the direction of...

Find the unit vector in the direction of vector `vec(PQ`, where P and Q are the points (1,2,3) and (4,5,6) respectively.

Text Solution

Verified by Experts

The correct Answer is:
`hati/sqrt(3) + hatj/sqrt(3) + hatk/sqrt(3)`
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Knowledge Check

  • If hat n is unit vector in the direction of the vector vec A then

    A
    `hatn = ( vec A)/( | vec A|) `
    B
    `hatn = vec A |vec A|`
    C
    `hat n =(|vec A | )/( vec A )`
    D
    `hatn = hatn xx vec A.`

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