The unit vector in the direction of the vector from P 1(1,0,1) to P2 (3,2,0) is

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The unit vector in the direction of the vector from P 1(1,0,1) to P2 (3,2,0) is

Ai+j+k

B2i +2j-k

C(2/3)i 1 (2/3)j - k

D(2/3)i + (2/3)j - k/3

Answer:

D. (2/3)i + (2/3)j - k/3

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