Mark M. answered • 04/24/19
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A solution (rather lengthy) to the exact same problem is on Quora.com.
How can I calculate the maximum value of 2cos(x) + 3sin(3x)?
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Victoria V. answered • 05/01/19
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Take the derivative and set it = 0. Then solve for the x's. Some will be mins, some will be maxs.
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