Set and relations
Question:
Consider the relation R on the set {-2,-1,0,1,2} defined by (a,b) ∈ R if and only if 1+ ab > 0 . Then, among the statements :
I. The number of elements in R is 17
II. R is an equivalence relation
A) only I is true
B) only II is true
C) Both I and II are true
D) Neither I nor II is true
Difficulty: Medium
Tags: Set and relations , Medium, JEE MATHS
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