SOLUTION: What is the domain of y = cos θ?

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Question 878373: What is the domain of y = cos θ?
Found 2 solutions by Fombitz, Edwin McCravy:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
theta typically varies from 0 to 360 degrees or 2pi radians because of the periodicity of the trig functions.

Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
The domain is %28matrix%281%2C3%2C-infinity%2C%22%2C%22%2Cinfinity%29%29

The range is [-1,1]

Edwin