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Which relation on (A={1,2}) is not symmetric?कौन-सा संबंध (A={1,2}) पर सममित नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ({(1,2)})({(1,2)})
Step 1: The reverse of ((1,2)) should be ((2,1)). Step 2: In the first option, ((2,1)) is missing, so it is not symmetric. Step 3: A single off-diagonal pair often breaks symmetry.चरण 1: ((1,2)) का उलटा ((2,1)) होना चाहिए। चरण 2: पहले विकल्प में ((2,1)) नहीं है, इसलिए यह सममित नहीं है। चरण 3: एकल तिरछा युग्म अक्सर सममितता तोड़ता है।
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