Solution 3.1:8c

From Förberedande kurs i matematik 1

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m (Lösning 3.1:8c moved to Solution 3.1:8c: Robot: moved page)
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Since
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<center> [[Image:3_1_8c.gif]] </center>
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<math>2.5^{2}=2.5\centerdot 2.5=6.25</math>, then
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<math>2.5=\sqrt{6.25}</math>, and then we see that
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<math>\sqrt{7}</math>
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is greater than 2.5 since
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<math>7^{{1}/{2}\;}>6.25^{{1}/{2}\;}</math>

Revision as of 11:17, 23 September 2008

Since \displaystyle 2.5^{2}=2.5\centerdot 2.5=6.25, then \displaystyle 2.5=\sqrt{6.25}, and then we see that \displaystyle \sqrt{7} is greater than 2.5 since \displaystyle 7^{{1}/{2}\;}>6.25^{{1}/{2}\;}

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