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What is the exact value for Tan(120) degrees?
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What is the exact value for Tan(120) degrees?

User Tukkan
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on a unit circle, 120 is in the second quadrant. the terminal line form a 60 degree angle with the negative part of the x axis, the x value is -1/2, and the y value is √3/2
tan120=(√3/2)/(-1/2)=-√3
User Avishay
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