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If (R={(1,2),(2,1),(2,3)}), which pair must be in (R\circ R)?यदि (R={(1,2),(2,1),(2,3)}), तो (R\circ R) में कौन सा युग्म अवश्य होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((1,1))((1,1))
Step 1: In (R\circ R), ((a,c)) occurs when some (b) satisfies ((a,b)\in R) and ((b,c)\in R). Step 2: ((1,2)) and ((2,1)) give ((1,1)). Step 3: In composition, look for connected pairs.चरण 1: (R\circ R) में ((a,c)) तब होगा जब कोई (b) हो ताकि ((a,b)\in R) और ((b,c)\in R)। चरण 2: ((1,2)) और ((2,1)) से ((1,1)) मिलता है। चरण 3: संयोजन में दो जुड़े युग्मों की कड़ी देखें।
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