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