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Which option gives a relation that is reflexive but not symmetric?किस विकल्प में दिया गया संबंध प्रतिवर्ती है पर सममित नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (A={1,2}, R={(1,1),(2,2),(1,2)})(A={1,2}, R={(1,1),(2,2),(1,2)})
Step 1: ((1,1)) and ((2,2)) are present, so the relation is reflexive. Step 2: ((1,2)) is present but ((2,1)) is missing, so it is not symmetric. Step 3: In mixed-property questions, test each property separately.चरण 1: ((1,1)) और ((2,2)) हैं, इसलिए संबंध प्रतिवर्ती है। चरण 2: ((1,2)) है पर ((2,1)) नहीं है, इसलिए सममित नहीं है। चरण 3: मिश्रित गुणों वाले प्रश्नों में दोनों जांचें अलग रखें।
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