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OpenStudy (anonymous):
Which function's graph has a period of 2? A. y=-4sin2x B. y=3cosπx C. y=2sin3x D. 7=cos(x-π/2)
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OpenStudy (anonymous):
2
hero (hero):
P = 2pi/B
OpenStudy (anonymous):
B lol
hero (hero):
Yeah, it's B
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