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OpenStudy (anonymous):
Write an equation of the cosine function with amplitude 2 and period 4p.
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OpenStudy (aravindg):
Hi there ! Welcome to Openstudy To your question: The usual cosine function has an amplitude 1 and period 2pi .Now any ideas on how to extend its period and amplitude?
OpenStudy (loser66):
|dw:1367502508177:dw| plug the 2pi/b = 4pi to find out b, and then plug back to the general form
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