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Find the direction cosines of the two li...

Find the direction cosines of the two lines which are connected by the relations `l-5m+3n=0` and `7l^(2)+5m^(2)-3n^(2)=0-`

A

`1/sqrt(14), 2/sqrt(14), 3/sqrt(14)`

B

`-1/sqrt(6), 1/sqrt(6), 2/sqrt(6)`

C

`-1/sqrt(14), -2/sqrt(14), (-3)/sqrt(14)`

D

`1/sqrt(6), -1/sqrt(6), (-2)/sqrt(6)`

Text Solution

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The correct Answer is:
A, B, C, D
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