SOLUTION: What is the exact value of tangent(-510)?

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Question 310786: What is the exact value of tangent(-510)?
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
tan(-510) = tan(-510 + 720) = tan(210)
tan is + in the 3rd quadrant
= tan(30)
= sqrt(3)/3

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Rotate the arrow in the negative direction (clockwise)
-510+=+-360+-+90+-+60
This leaves a 30 degree angle with the minus x-axis
The tangent in this quadrant is (-)/(-) = (+)
tan%28-510%29+=+1%2Fsqrt%283%29