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OpenStudy (anonymous):
the function f(x)=-2cos(3x-pi/4) has a. amplitude 3 and period pi b. amplitude 2 and period 2pi/3 c. amplitue 3 and period 2pi d. amplitude 3 and period 4pi
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OpenStudy (anonymous):
i know the amplitude i 3 but what the period?
OpenStudy (anonymous):
Amplitude is 2 period 2pi/3
OpenStudy (dumbcow):
f(x) = +-Acos(B(x-h)) +k A - amplitude Period = 2pi/B Horizontal shift = h Vertical shift = k
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