3. Simplify x(t) = 3 cos(27200t + + sin(27200t + to the form x(t) = a cos(27200t + 0) where a and 0 are parameters you need to determine.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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3. Simplify
x(t) = 3 cos(27200t +
+ sin(27200t +
to the form
x(t) = a cos(27200t +0)
where a and 0 are parameters you need to determine.
Hint: This problem may be easier to solve if you recognize that x(t) is the real part of
회(t)= 3e(2m2001+ 중) + ej(2m2001-플+품)
(You must show that this is correct.) You may need a calculator to simplify this problem.
Transcribed Image Text:3. Simplify x(t) = 3 cos(27200t + + sin(27200t + to the form x(t) = a cos(27200t +0) where a and 0 are parameters you need to determine. Hint: This problem may be easier to solve if you recognize that x(t) is the real part of 회(t)= 3e(2m2001+ 중) + ej(2m2001-플+품) (You must show that this is correct.) You may need a calculator to simplify this problem.
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