Page 327 - Calculus Demystified

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(c) transcendental Final Exam
(d) indeterminate
(e) the quotient of rational numbers
4. The decimal expansion of 4/7is
(a) 0.213535353 ...
(b) 0.141414114 ...
(c) 0.1357357357 ...
(d) 0.7981818181 ...
(e) 0.571428571428 ...
√ √
5. The number 3 − 2

(a) lies between 1 and 2
(b) is rational
(c) is a perfect square
(d) lies between −1 and 0
(e) lies between 0 and 1
6. The set {x : 3 ≤ x< 7} is

(a) a closed interval
(b) an open interval
(c) a discrete set
(d) a half-open interval
(e) a half-line
7. The set [2, 5) ∩[4, 8] is

(a) {x : 4 <x < 8}
(b) {t : 4 ≤ t< 5}
(c) {s : 2 ≤ s ≤ 4}
(d) {w : 2 <w < 8}
(e) {u : 4 ≤ u ≤ 5}
8. The set Q ∩ (−3, 2) is
(a) infinite
(b) finite
(c) discrete
(d) unbounded
(e) arbitrary
2
9. The set {(x, y) : x = y } has graph that is
(a) a line