NCERT Exercise 1.1 Q13 - Relations and Functions
Question: Show that R = {(P1, P2) : P1 and P2 have the same number of sides} on the set of all polygons is an equivalence relation. What is the set of all elements related to the right triangle with sides 3, 4, 5?
Answer: R is an equivalence relation; the class is the set of all triangles.
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