SOLUTION: how do you find the exact value of tan(-105degrees)?

Question 845639: how do you find the exact value of tan(-105degrees)?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how do you find the exact value of tan(-105degrees)?
tan(-105) = -tan(105)
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= -tan(60+45) = -[(tan(60)+tan(45))/(1-tan(60)(tan(45))
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= -[(sqrt(3)/2)+(1)]/[1-(sqrt(3)/2)(1)]
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Cheers,
Stan H.
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