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Find the angle between the lines whose d...

Find the angle between the lines whose direction cosine are given by the equation: `"l"+"m"+"n"=0" and "l^2"+"m^2"-"n^2"=0`

A

`cos^(-1)(2sqrt(3))`

B

`cos^(-1)sqrt(3)`

C

`(pi)/(3)`

D

`(pi)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
(c)
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