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If (R) is an equivalence relation and ((4,7)\in R), which pair must definitely be in (R)?यदि (R) तुल्यता संबंध है और ((4,7)\in R), तो कौन सा युग्म निश्चित रूप से (R) में होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((7,4))((7,4))
Step 1: An equivalence relation is symmetric. Step 2: If ((4,7)) is present, symmetry gives ((7,4)). Step 3: In equivalence relations always remember the reverse pair.चरण 1: तुल्यता संबंध सममित होता है। चरण 2: ((4,7)) होने पर सममितता से ((7,4)) भी होगा। चरण 3: तुल्यता संबंध में उलटे युग्म को हमेशा ध्यान में रखें।
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