SOLUTION: Give the number of full cycles of the function y=-3cosx on the interval (π, 7π) a)3 b)2 C)6 d)4

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Question 1065861: Give the number of full cycles of the function y=-3cosx on the interval (π, 7π)
a)3 b)2 C)6 d)4
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
cos(x) has a period of 2pi
How many 2pi's fit in the interval 7pi+-+pi+=+6pi ?
+6%28pi%29%2F2%28pi%29++=+highlight%28+3+%29++