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If (R={(1,1),(2,2),(1,2)}), (R) is not symmetric because what is missing?यदि (R={(1,1),(2,2),(1,2)}) है, तो (R) सममित नहीं है क्योंकि क्या कमी है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((2,1))((2,1))
Step 1: ((1,1)) and ((2,2)) are fine because they are their own reverses. Step 2: The reverse of ((1,2)), ((2,1)), is missing. Step 3: Even one missing reverse pair breaks symmetry.चरण 1: ((1,1)) और ((2,2)) सही हैं क्योंकि वे अपने ही उलटे हैं। चरण 2: ((1,2)) का उलटा ((2,1)) नहीं है। चरण 3: एक भी उलटा युग्म गायब हो तो संबंध सममित नहीं रहता।
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