SOLUTION: True or False: sin(-85)=-sin(85) I need to show my work, how do I do so?
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-> SOLUTION: True or False: sin(-85)=-sin(85) I need to show my work, how do I do so?
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Question 421006
:
True or False: sin(-85)=-sin(85)
I need to show my work, how do I do so?
Answer by
josmiceli(19441)
(
Show Source
):
You can
put this solution on YOUR website!
Just draw a picture of the 4 quadrants. 85 degrees is
in the 1st quadrant. -85 degrees is in the 4th quadrant.
Show that opposite/hypotenuse is (+) for 85 anf
(-) for -85