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Find the direction cosines of the two li...

Find the direction cosines of the two lines which are connected by th relations. `l-5m+3n=0a n d7l^2+5m^2-3n^2=0`

A

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

B

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

C

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

D

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

Text Solution

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The correct Answer is:
A
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