In Exercises 15-18, for the equation specified, (a) determine the frequency of the beats, (b) determine the frequency of the rapid oscillations, and (c) use the information from parts (a) and (b) to give a rough sketch of a typical solu- tion. [Hint: You should be able to do this sketch with no further calculation.] d²y 9t 15. +4y = COS d²y 16. dt2 +11y = 2 cos 3t 4 dt2 d²y 17. d²y +5y = 3 cos 2t 18. dt2 +6y = cos 2t dt2
In Exercises 15-18, for the equation specified, (a) determine the frequency of the beats, (b) determine the frequency of the rapid oscillations, and (c) use the information from parts (a) and (b) to give a rough sketch of a typical solu- tion. [Hint: You should be able to do this sketch with no further calculation.] d²y 9t 15. +4y = COS d²y 16. dt2 +11y = 2 cos 3t 4 dt2 d²y 17. d²y +5y = 3 cos 2t 18. dt2 +6y = cos 2t dt2
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.5: Trigonometric Graphs
Problem 6E
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