The direction cosines of the line joinin...

The direction cosines of the line joining (4,3,-5) and (-2,1,-8) are

A

6/7,2/7,3/7

B

2/7,3/7,6/7

C

6/7,3/7,2/7

D

- 6/7,3/7,-2/7

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The correct Answer is:

A

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