SOLUTION: express the same function of a positive acute angle of cos 149 degrees not using a calculator.

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Question 32871: express the same function of a positive acute angle of cos 149 degrees not using a calculator.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
cos(149)= cos(180-31)= -cos31
Cheers,
Stan H.