SOLUTION: Please help me solve this problem: Is this true of false: if alpha and beta are in standard position and cos alpha = cos beta, then alpha and beta must be equal. Thanks!

Algebra ->  Trigonometry-basics -> SOLUTION: Please help me solve this problem: Is this true of false: if alpha and beta are in standard position and cos alpha = cos beta, then alpha and beta must be equal. Thanks!      Log On


   

Question 395389: Please help me solve this problem:
Is this true of false: if alpha and beta are in standard position and cos alpha = cos beta, then alpha and beta must be equal.
Thanks!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Is this true of false: if alpha and beta are in standard position and cos alpha = cos beta, then alpha and beta must be equal.
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No. alpha could be 60 degrees and beta could be 300 degrees
They both have cos = 1/2 but the angles are not equal.
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Cheers,
Stan H.