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For positive l, m and n, if the points x...

For positive l, m and n, if the points `x=ny+mz, y=lz+nx, z=mx+ly` intersect in a straight line, when
Q. l, m and n satisfy the equation

A

`sqrt(1-l^(2)) , sqrt(1- m ^(2)), sqrt(1-n ^(2))`

B

1,m and n

C

`(1)/(sqrt(1-I ^(2))), (m)/(sqrt(1-m^(2)))and (n)/(sqrt(1- n ^(2))`

D

None of these

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The correct Answer is:
A
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