Page 326 - Calculus Demystified
P. 326
FINAL EXAM
1. The operations that preserve rational numbers are
(a) addition, multiplication, subtraction, division
(b) addition and multiplication
(c) multiplication and division
(d) square roots and logarithm
(e) sine and cosine
2. The number 3.157575757 ... , expressed as a rational fraction, is
3
(a)
2
2976
(b)
355
1563
(c)
495
2
(d)
3
111
(e)
222
√ √
2
3. The number ( 3 + 2) is
(a) rational
(b) irrational
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