Numbers: Real numbers
Approximations of real numbers
The decimal development of the number #\sqrt{5}# begins as follows:
\[ \sqrt{5}= 2.236\cdots\] Is #2.23# the best approximation of #\sqrt{5}# to two decimal places?
\[ \sqrt{5}= 2.236\cdots\] Is #2.23# the best approximation of #\sqrt{5}# to two decimal places?
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