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On (A={1,2,3}), which property is not present in (R={(1,1),(2,2),(3,3),(1,2)})?(A={1,2,3}) पर (R={(1,1),(2,2),(3,3),(1,2)}) में कौन सा गुण नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Symmetricसममित
Step 1: Symmetry requires ((2,1)) along with ((1,2)). Step 2: ((2,1)) is missing, so the relation is not symmetric. Step 3: Missing one reverse pair breaks symmetry.चरण 1: सममितता के लिए ((1,2)) के साथ ((2,1)) भी चाहिए। चरण 2: ((2,1)) अनुपस्थित है इसलिए यह सममित नहीं है। चरण 3: एक उलटा युग्म छूट जाए तो सममित गुण टूट जाता है।
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