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Which relation on real numbers does not define a function?कौन-सा relation real numbers पर फलन नहीं बनाता?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (y^2=x) with (x>0)(y^2=x) with (x>0)
In (y^2=x), for (x=4), both (y=2) and (y=-2) are possible. Two (y)-values for one (x) do not define a function.(y^2=x) में (x=4) पर (y=2) और (y=-2) दोनों मिलते हैं। एक (x) की दो (y) values function नहीं बनातीं।
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