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Question:
The two lines lx + my = n and l'x + m'y = n' are perpendicular if
The two lines lx + my = n and l'x + m'y = n' are perpendicular if
Updated On: Sep 19, 2024
- \(ll'+mm'=0\)
- \(lm'=ml'\)
- \(lm+l'm'=0\)
- \(lm'+ml'=0\)
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The Correct Option is A
Solution and Explanation
The correct answer is (A) : \(ll'+mm'=0\).
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