SOLUTION: Find the exact values of sinθ, cosθ, tanθ if θ=-9π/4.
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Question 333374: Find the exact values of sinθ, cosθ, tanθ if θ=-9π/4.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Use the Unit Circle:
Once around the circle clockwise and then another 
That puts you at 
. )
is the 
-coordinate, )
is the 
-coordinate, and )
is the }{\sin(\varphi)})
John
My calculator said it, I believe it, that settles it
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