SOLUTION: what is the exact value of tan 150 degrees without using a calculator

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Question 661469: what is the exact value of tan 150 degrees without using a calculator
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
what is the exact value of tan 150 degrees without using a calculator
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tan(150) = tan(180-30) = -tan(30) = -1/sqrt(3)
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Cheers,
Stan H.
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