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Mathematics 14 Online
OpenStudy (anonymous):

How would I figure this out? Anyone? cos 0 = 3, cos pi/4 = 0, cos pi/2 = –3, cos 3pi/4 = 0, cos pi = 3 What is the rule for the cosine function? @dpaInc

OpenStudy (anonymous):

3cos(2x); i guess...

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