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If 1/2, 1/3, n are the direction cosines...

If `1/2, 1/3, n` are the direction cosines of a line , then the values of n is

A

`(sqrt23)/(6)`

B

`(23)/(6)`

C

`(2)/(3)`

D

`(3)/(2)`

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The correct Answer is:
A
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