Unformatted text preview: 3.123456789101112. .. is irrational because no part repeats. #8. 12.03456915 works, as do many other numbers. [The decimal must either end or repeat.] #23. S = 0.01010101. .. 100S = 1.01010101. .. [Subtract the top from the bottom to get] 99S = 1, so S=1/99. #36. 2 [or in fact the square root of any prime number.] NOTE: Anything inside [ ] need not be part of the student's solution. It is for explanation purposes only....
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 Spring '08
 Irwin
 Rational number, Irrational number, Dr. Schurle Assignment, unending decimal expansion

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