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If (l(1),m(1),n(1)) and (l(2),m(2),n(2))...

If `(l_(1),m_(1),n_(1)) and (l_(2),m_(2),n_(2))` are the direction cosines of two lines find the direction cosines of the line which is perpendicular to both these lines.

Text Solution

Verified by Experts

The correct Answer is:
`sqrt(sum(m_(1)n_(2)-m_(2)n_(1))^(2))`
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