Trigonometry : Amplitude
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1. y=cos x; for x=4pi
2. Determine the Amplitude of: y = 3 sin x
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Solution Preview
A full revolution of a circle corresponds to an angle of 2Pi
Therefore, angle 4Pi is equivalent to two full revolutions.
Hence, it is also equivalent to an angle of ...
Solution Summary
A cosine is evaluated and an amplitude is found.
$2.49