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OpenStudy (anonymous):
Find the period of the function. y = -3 cos x Would the period be 3, or is it always 2pi because it's cos?
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OpenStudy (p0sitr0n):
2pi
OpenStudy (luigi0210):
the number in front of the cos is the amplitude The period of cos is 2Pi, unless there is something in front of the x
OpenStudy (johnweldon1993):
2pi would be correct (but not ALWAYS 2pi)
OpenStudy (p0sitr0n):
3 is amplitude
OpenStudy (anonymous):
got it thank you! :)
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