
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Please answer all three parts

Transcribed Image Text:(a) Using a trig identity, write x(t) = cos(5t) — sin(5t) using only one cosine function.
-
x(t) = help (formulas)
(b) Using a trig identity, write x(t) = cos(5t) — sin(5t) using only one cosine function.
-
x(t) =
-help (formulas)
=
(c) Using a trig identity, write x(t): = e
x(t) = help (formulas)
Hint:
**********
e-5t(cos(5t) — sin(5t)) using only one cosine function in your answer.
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