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I have 1.805cos(2pi / 12.165x) +3.125 as the function of tidal data. However I need to use another function, superimpose, to more accurately graph the data for the tides. And yeah I'm pretty lost... Does the next function have to be something to do wit the moon and its rotation around earth?

And help would be greatly appreciated :)

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# Homework Help: Superposition of cosine functions for tides

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