The direction cosines of the line joinin...

The direction cosines of the line joining the points (-2, 4, -5) and (1, 2, 3) is :

A

`ltlt(-2)/sqrt77,(8)/sqrt77,(3)/sqrt77gtgt`

B

`ltlarr3,2,8gtgt`

C

`ltlt(3)/sqrt77,(-2)/sqrt77,(8)/sqrt77gtgt`

D

`ltlt3,-2,8gtgt

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