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If (A={1,2,3}) and (B={1,4,9,16}), how many ordered pairs are in (R={(x,y):y=x^2,\ x\in A,\ y\in B})?यदि (A={1,2,3}) और (B={1,4,9,16}), तो relation (R={(x,y):y=x^2,\ x\in A,\ y\in B}) में कितने ordered pairs होंगे?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (3)(3)
For (x=1,2,3), pairs are ((1,1),(2,4),(3,9)). In rule-based relations, substitute domain values systematically.(x=1,2,3) के लिए pairs ((1,1),(2,4),(3,9)) मिलते हैं। rule relation में domain values को systematically substitute करें।
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