Question

Discuss the following relation for reflexivity,symmetricity and transitivity.

Let P denote the set of all straight lines in a plane.The relation R defined

by

“l R M if l is perpendiculartom”
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Answer 1

Answer:

i) The relation R defined on the set of all positive integers by "mRn if m divides n". (ii) Let P denote the set of all straight lines in a plane. The relation R defined by "l R m if l is perpendicular to m".