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13. The solution to the polynomial inequality x² - 4 >0 is: a) x > 2 b) x>-2 c) x < -2 and x > 2 d) -2

13. The solution to the polynomial inequality x² - 4 >0 is: a) x > 2 b) x>-2 c) x < -2 and x > 2 d) -2

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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13. The solution to the polynomial inequality x² − 4 > 0 is: a) x > 2 b) x>-2 c) d) -2<x<2 14. For an acute angle, , of a right triangle, sin = sin 60° cos 45° - sin 45° cos 60°. Which measurement is a possible size for ? a. 45⁰ b. 15⁰ C. d. x < -2 and x > 2 60⁰ 105⁰
Transcribed Image Text:13. The solution to the polynomial inequality x² − 4 > 0 is: a) x > 2 b) x>-2 c) d) -2<x<2 14. For an acute angle, , of a right triangle, sin = sin 60° cos 45° - sin 45° cos 60°. Which measurement is a possible size for ? a. 45⁰ b. 15⁰ C. d. x < -2 and x > 2 60⁰ 105⁰
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