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Class 12 Relations And Functions · Assertion Reason1 Markstypes_of_relations

Class 12 Maths · Relations And Functions · Assertion Reason #113

Assertion: Let \(L\) be all lines in a plane. The relation \(R=\{(L_1,L_2):L_1\perp L_2\}\) is symmetric. Reason: For any two planar lines, \(L_1\perp L_2\Rightarrow L_2\perp L_1\), so each related pair has its reversed pair in \(R\).

✅ Step-by-Step Solution

Final Answer: Option (A): Both A and R are true, and R is the correct explanation of A.
  1. Perpendicularity reverses: L1 perpendicular L2 implies L2 perpendicular L1, which is exactly symmetry.

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