SOLUTION: Find all the solutions to the equation cosx = -1.

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Question 91486: Find all the solutions to the equation cosx = -1.
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
cos(x) = -1
On the cycle [-pi,pi], cos(x) = -1 occurs when x = -pi or pi. The period of cos(x) is 2pi.
Answers:
-pi +- 2pik ~> pi +- 2pik
pi +- 2pik
Answer:
pi +- 2pik
Where k is any integer...
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