SOLUTION: True or false: sin(-85)=-sin85 Thank you so much for all of your help!!!! God Bless!!!!

Question 389898: True or false: sin(-85)=-sin85
Thank you so much for all of your help!!!!
God Bless!!!!
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
True or false: sin(-85)=-sin85
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True
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In general sin(-x) = -sin(x)
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Cheers,
Stan H.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
looks true to me
Looking at the right side, degrees is in the 1st quadrant
between and degrees, and sin is (+)
Therefore is (-)
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Looking at the left side, degrees is in the 4th quadrant
where the sin is (-)
so, the equation says

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