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Which option gives the correct interval for (\sqrt{20}) on the number line?किस विकल्प में (\sqrt{20}) का संख्या रेखा पर सही अंतराल दिया गया है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((4,5))((4,5))
Because (4^2=16) and (5^2=25), (4<\sqrt{20}<5). Perfect-square bounds quickly give the interval.क्योंकि (4^2=16) और (5^2=25), इसलिए (4<\sqrt{20}<5)। पूर्ण वर्गों की सीमा तुरंत अंतराल देती है।
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