Thread: Evaluate cos(arccos((32pi)/3)) (I think I know how, just need someone to confirm)
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Feb27-12, 08:01 PM   #5
 
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Quote by Ianfinity View Post
Evaluate cos(arccos((32pi)/3))

From my understanding, I need to subtract (32pi)/3 by pi until the answer falls within the domain of [-1, 1]. Is this the correct way to solve this problem?
No. That's not the way to solve this.

See Ansatz7's post above.