luckiegirl28
Answered

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Really need some help on this please!
what is the amplitude of the sinusoid given by y=-4 cos(2x)?

Sagot :

sugarmate
Amplitude is absolute value of (-4) = 4.
Panoyin
y = -4cos2x
y =-4(0.9995065604x)
y = -3.998026241x
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