SOLUTION: Exact Value of sec (-510degrees)

Question 744013: Exact Value of sec (-510degrees)
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Exact Value of sec (-510degrees)
510�=rotating clockwise one 360� revolution plus 150�. This gives us a reference angle of 30�
in quadrant III where sec and cos are<0
sec (-510degrees)
=1/cos(-510�)
=1/-cos30�
=1/-√3/2
=-2√3/3

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