SOLUTION: explain the relationship between the cosine function and its derivative?

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Question 175394: explain the relationship between the cosine function and its derivative?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The slope of the Cosine does this:
0 degrees - 0
90 degrees - max -
180 degrees - 0
270 degrees - max +
360 degrees - 0
The function whose value is the same as
these values over 360 degrees is
-Sine