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When two pure notes that are close in frequency are played together, their sounds interfere to produce beats; that is, the loudness (or amplitude) of the sound altemately increases and decreases. I the two notes are given by h)- cos174) and ) ces(19t) the resulting sound is o-e) + f(). (a) Graph the function y ). 23

When two pure notes that are close in frequency are played together, their sounds interfere to produce beats; that is, the loudness (or amplitude) of the sound altemately increases and decreases. I the two notes are given by h)- cos174) and ) ces(19t) the resulting sound is o-e) + f(). (a) Graph the function y ). 23

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 67E
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(b) Verify that f(t) = 2 cos(t) cos(18t). %3D (c) Graph y = 2 cos(t) and y = -2 cos(t), together with the graph in part (a), in the same viewing rectangle. 2.5 2.0 f(t) 2
Transcribed Image Text:(b) Verify that f(t) = 2 cos(t) cos(18t). %3D (c) Graph y = 2 cos(t) and y = -2 cos(t), together with the graph in part (a), in the same viewing rectangle. 2.5 2.0 f(t) 2
When two pure notes that are close in frequency are played together, their sounds interfere to produce beats; that is, the loudness (or amplitude) of the sound altemately increases and decreases. I the two notes are given by (e) - cos(17) and )- ces(19t) the resulting sound is o - e) + e). (a) Graph the function y ). its 23
Transcribed Image Text:When two pure notes that are close in frequency are played together, their sounds interfere to produce beats; that is, the loudness (or amplitude) of the sound altemately increases and decreases. I the two notes are given by (e) - cos(17) and )- ces(19t) the resulting sound is o - e) + e). (a) Graph the function y ). its 23
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