You can put this solution on YOUR website! tan(x)=-1/sqrt(3)
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If you want to solve for x, you should say that.
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x = -30 degs (from a calculator, or from memory)
---> x = 330 or 150 degs
---> x = 150 + n*180 degs, n = integer
or x = 5pi/6 + n*pi radians, n = integer
