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I. True or False. 1. N is closed under subtraction. 2. Z is closed under division. 3. Vx2 = -x if x < 0. 4. If a < b, then ac < bc, Vc + 0.

I. True or False. 1. N is closed under subtraction. 2. Z is closed under division. 3. Vx2 = -x if x < 0. 4. If a < b, then ac < bc, Vc + 0.

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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I. True or False. (2) - ) - ) () -() (*) - () » () - () - () 1. N is closed under subtraction. 50 7. 40 50 51 39 40 2. Z is closed under division. 7 8. 4 7 3. Vx2 = -x if x < 0. I| 4. If a < b, then ac < bc, Vc + 0. 10 9. 2 10 5. 3! a, b e Z such that ab = 1. 8 • (") (")- (") 100 100 + 2 8. + 3 100 8 8. 6. 10. 3 4 2 6. ||
Transcribed Image Text:I. True or False. (2) - ) - ) () -() (*) - () » () - () - () 1. N is closed under subtraction. 50 7. 40 50 51 39 40 2. Z is closed under division. 7 8. 4 7 3. Vx2 = -x if x < 0. I| 4. If a < b, then ac < bc, Vc + 0. 10 9. 2 10 5. 3! a, b e Z such that ab = 1. 8 • (") (")- (") 100 100 + 2 8. + 3 100 8 8. 6. 10. 3 4 2 6. ||
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