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Find the unit vector in the direction of vector vec PQ ,P(1,2,3) and Q(5,6,7 )

Answer

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

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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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