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Insert two irrational numbers between the following: 3sqrt(5) and 2sqrt(3) - Mathematics

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Question

Insert two irrational numbers between the following:

`3sqrt(5)` and `2sqrt(3)`

Sum
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Solution

Let’s consider the following:

  • `3sqrt(5)` is approximately 6.708.
  • `2sqrt(3)` is approximately 3.464.

To find two irrational numbers between these, we can choose square roots of numbers that lie between 37 and 38. The square roots of 37 and 38 are irrational and fit nicely between the given numbers.

Thus, the two irrational numbers between `3sqrt(5)` and `2sqrt(3)` are:

  • `sqrt(37) ≈ 6.083`
  • `sqrt(38) ≈ 6.164`

These numbers are irrational and lie between the approximated values of `3sqrt(5)` and `2sqrt(3)`.

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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 11. (ii) | Page 15
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