SOLUTION: Find the exact value of x between 0 degrees and 180 degrees for which each is true. cos x = sqrt(-3)/2

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Question 721023: Find the exact value of x between 0 degrees and 180 degrees for which each is true.
cos x = sqrt(-3)/2
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the exact value of x between 0 degrees and 180 degrees for which each is true.
cos x = sqrt(-3)/2
I believe this should be written:cosx=-√3/2
For given domain, [0,180º], reference angle is in quadrant II where cos<0.
cosx=-√3/2
x=150º