Let $S$ be the set of all real numbers. Then the relation $R = \{(a, b) : 1 + ab > 0\}$ on $S$ is
Let $S$ be the set of all real numbers. Then the relation $R = \{(a, b) : 1 + ab > 0\}$ on $S$ is
- A
Reflexive and symmetric but not transitive
- B
Reflexive and transitive but not symmetric
- C
Symmetric, transitive but not reflexive
- D
Reflexive, transitive and symmetric
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