SOLUTION: How are these don?This topic i dont understand .how is this done?
Use even and odd properties of the trigometric function to find the exact calue of cos (-150 degrees)
Use ev
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Question 756118: How are these don?This topic i dont understand .how is this done?
Use even and odd properties of the trigometric function to find the exact calue of cos (-150 degrees)
Use even and odd properties of the trigometric function to find the exact calue of cos (150 degrees)
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Use even and odd properties of the trigometric function to find the exact calue of cos (-150 degrees)
..
cos is an even function: cos(-x)=cos(x)
cos(150)=cos(-150)=-√3/2 (in Q2 and Q3 where cos<0
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