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Choose the point on the terminal side of -210°. 
Select one:
a. (-1, 1)
b. (-1, √3 )
c. ( √3 , -1)
d. ( -√3 , 1)

Guest Nov 2, 2017
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 #1
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-210°  = 360 - 210  =   150°

 

This is a 30° reference angle in the second quadrant

 

Tan 30°  in the second quadrant  =  y/x  = 1 / -√3

 

So......(x , y)  =  d. ( -√3 , 1) 

 

 

cool cool cool

CPhill  Nov 3, 2017

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