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Mathematics 21 Online
OpenStudy (azureilai):

Help finding max and min of cosine function please. Question attached. I used wolfram alpha to verify the answer, I get the first part, but not the second.

OpenStudy (azureilai):

The max comes out to be 6.2 + 12.4n, and the min = 12.4 n. I got the 6.2 part, but I have no idea where the 12.4 comes from

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