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A particular sound wave can be graphed using the function y = -10 sin 4x. Find the amplitude and period of the function.

A. Amplitude=10, period= 1/2π
B. Amplitude=2π, period= -10
C. Amplitude=-10, period= 2
D. Amplitude=1/2π, period= 10

Sagot :

Step-by-step explanation:

x2+2xy+y2-1,y2-x2+2y+1,x2-y2+2x+1

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