SOLUTION: Exact Value of sec (-510degrees)

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Question 744013: Exact Value of sec (-510degrees)
Answer by lwsshak3(11628) About Me  (Show Source):
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Exact Value of sec (-510degrees)
510º=rotating clockwise one 360º revolution plus 150º. This gives us a reference angle of 30º
in quadrant III where sec and cos are<0
sec (-510degrees)
=1/cos(-510º)
=1/-cos30º
=1/-√3/2
=-2√3/3