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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

1, 2, 3 and 1, 1, 2

B

1, 2, 3 and -1, 1, 2

C

1, 2, 3 and 1, -1, 2

D

1, 2, 3 and 1, 1, -2

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The correct Answer is:
B
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