#trigonometry

5 messages · Page 1 of 1 (latest)

jaunty iris
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was wondering how do u get 240°?

covert voidBOT
unique canopy
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true

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240 is not valid

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$cos^{-1} \frac{-1}{2} = \pi - cos^{-1}{\frac{1}{2}} = \pi - \frac{\pi}{3} = \frac{2\pi}{3}$