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The direction cosines of the line joinin...

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

A

(a) `-3,1,4`

B

(b) `-1,5,-2`

C

(c) `(-3)/(sqrt(26)),(1)/(sqrt(26)),(4)/(sqrt(26))`

D

(d) `(-1)/(sqrt(30)),(5)/(sqrt(30)),(-2)/(sqrt(30))`

Text Solution

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The correct Answer is:
C
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