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Show that √ 5 is an Irrational Numbers. Use Division Method - Mathematics

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Question

Show that `sqrt(5)` is an irrational numbers. [Use division method]

Sum

Solution

2.23606...
2 5.0000000000...
-4
42 100
-84
443 1600
-1329
4466 27100
-26796
447206 3040000
-2683236
  356764 ...

 

 

 

 

 

 

 

 

 

 


Clearly, `sqrt(5)` = 2.23606......; which is an irrational number.
Hence, `sqrt(5)` is an irrational number.

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Chapter 1: Irrational Numbers - Exercise 1.2

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Frank Mathematics [English] Class 9 ICSE
Chapter 1 Irrational Numbers
Exercise 1.2 | Q 3
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