SOLUTION: How do we find an angle θ that its cos equals 7π/4? Can that be explained analytically? Thanks so much in advance

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Question 530271: How do we find an angle θ that its cos equals 7π/4? Can that be explained analytically?
Thanks so much in advance
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
7pi/4 is greater than 1. You sure that's what you meant to ask?