Instructions

In the following questions a question is followed by data in the fonn of two statements labelled as I and II. You have to decide whether the data given in the statement is sufficient to answer the questions.

Question 20

Is $$R_1$$ an equivalence relation?
I. $$R_1$$ is a relation on real numbers, R, defined by $$(a, b) \in R_1 \Leftrightarrow 2 + ab > 0$$ for all $$a, b \in R$$
II. $$R_1$$ is a symmetric relation.

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AP ICET 25th July 2022 Shift-1

Is $$R_1$$ an equivalence relation?I. $$R_1$$ is a relation on real numbers, R, defined by $$(a, b) \in R_1 \Leftrightarrow 2 + ab > 0$$ for all $$a, b \in R$$II. $$R_1$$ is a symmetric relation.

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Is $$R_1$$ an equivalence relation?
I. $$R_1$$ is a relation on real numbers, R, defined by $$(a, b) \in R_1 \Leftrightarrow 2 + ab > 0$$ for all $$a, b \in R$$
II. $$R_1$$ is a symmetric relation.