Difference between revisions of "Real numbers"
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==Useful websites== | ==Useful websites== | ||
==Reference Books== | ==Reference Books== | ||
| + | {7} over {6} | ||
= Teaching Outlines = | = Teaching Outlines = | ||
Revision as of 17:32, 8 July 2014
| Philosophy of Mathematics |
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Useful websites
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{7} over {6}
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Hints for difficult problems
Irrational numbers
Exercise 1.3.1
1.Write four possible irrational numbers between 4 and 5.
Solution:
Consider the squares of 4 and 5
Square of 4 = 16 and Square of 5 = 25
We can also write 4 and 5 as
√ 16 =4 and √ 25 =5
Between and there exists
√ 17 ,√ 18 , √ 19 , √ 20 , √ 21 , √ 22 , √ 23 , √ 24
Use the following Geogebra applet to Visualise Rational and Irrational Numbers
Project Ideas
Math Fun
Usage
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