PreCalculus - Trigonometry (47 of 54) Find the Amplitude, Period, Phase Angle, and Write Equation

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In this video I will find A=?, P=?, phase angle=?, C=? and write the equation given the graph.
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doesn't really help with what "x" would be though...

vlogcast
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Shouldn’t the B be in the parenthesis and only multiply x instead of (x+phi)? Because in physics, it would be y=0.5cos(2x+phi) ?

renaudayotte
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a jiggalo! those little guys who ride horses

BrionyMinodora
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why on earth does nobody include a damn c value

you're skipping an explanation for an entire part of the function

rogermartin