CBSE Class 12 Mathematics Relations and Functions Q #2175
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5 Marks Generic-Curriculum LA
Let $L$ be the set of all lines in $XY$ plane and $R$ be the relation in $L$ defined as $R = \{(L_1, L_2) : L_1 \text{ is parallel to } L_2\}$. Show that $R$ is an equivalence relation. Find the set of all lines related to the line $y = 2x + 4$. [NCERT]
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