We have that the letter A in the diagram below given as
Amplitude
Option A
<h3>
Amplitude</h3>
Question Parameters:
Amplitude
Crest
Trough
Wavelength
Generally, the amplitude of a wave is the maximum displacement of the wave in the medium from its initial position.
Amplitude is denoted with the letter A
Therefore,Amplitude
Option A
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Answer:
16.12
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Well,
arctan is a bijection from R into (-pi/2 , pi/2)*and
pi is a period of tangent function:
so
as we have : tan(7pi/4) = tan(pi - pi/4) = - tan(pi/4)
we finally get :
<span>arctan(tan(7pi/4)) = artan(tan(- pi/4)) = - pi/4
</span>
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