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What are the direction cosines of a line...

What are the direction cosines of a line whose direction ratios are 3,4,12?

A

`3/13, 4/13, 12/13`

B

`(-3)/13, (-4)/13, (-12)/13`

C

`1/13, 2/13, 3/13`

D

`(-1)/13, (-2)/13, (-3)/13`

Text Solution

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The correct Answer is:
A, B
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