பின்வருவனவற்றில் எது இடையே உள்ள விகிதமுறு எண் \(\sqrt{5}\) and \(\sqrt{7}\)?

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NTPC CBT-I (Held On: 20 Jan 2021 Shift 1)
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  1. \(4\frac{1}{5}\)
  2. \(3\frac{1}{5}\)
  3. \(2\frac{2}{5}\)
  4. \(1\frac{1}{5}\)

Answer (Detailed Solution Below)

Option 3 : \(2\frac{2}{5}\)
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Detailed Solution

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கொடுக்கப்பட்டது

√ 5 and  √7

தர்க்கம் 

பகுத்தறிவு எண்கள் என்பது முடிவடையும், முடிவடையாத அல்லது மீண்டும் நிகழும் எண்கள்.

கணக்கீடு
 
√5 = 2.33 மற்றும் √7 = 2.64
 
பகுத்தறிவு எண் 2.33... மற்றும் 2.64...க்கு இடையில் உள்ளது.
 
எனவே, 2.33 மற்றும் 2.64 க்கு இடையில் இருக்கும் எண்\(2{2\over5}\) மட்டுமே
 
\(2{2\over5}\) என்பது√5 க்கும்√7 க்கும் இடைப்பட்ட விகிதமுறு எண்

 

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