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Insert 3 irrational numbers between 11 and 12. - Mathematics

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Question

Insert 3 irrational numbers between 11 and 12.

Sum
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Solution

To insert 3 irrational numbers between 11 and 12, we can look for square roots of numbers between 112 = 121 and 122 = 144.

This will give us numbers between whose square roots are irrational.

We are looking for numbers between 121 and 144, so we can choose numbers like: 

  • 123 (since `sqrt(123)` is irrational)
  • 126 (since `sqrt(126)` is irrational)
  • 130 (since `sqrt(130)` is irrational)

The 3 irrational numbers between 11 and 12 are `sqrt(123), sqrt(126), sqrt(130)`

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Chapter 1: Rational and Irrational Numbers - EXERCISE 1C [Page 15]

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B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 1 Rational and Irrational Numbers
EXERCISE 1C | Q 10. (ii) | Page 15
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