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anonymous
 5 years ago
Find the terminal point P(x, y) on the unit circle determined by t = (4/3)pi
anonymous
 5 years ago
Find the terminal point P(x, y) on the unit circle determined by t = (4/3)pi

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you are being asked to find \[(cos(\frac{4\pi}{3}),sin(\frac{4\pi}{3}))\] \[cos(\frac{4\pi}{3})=\frac{1}{2}\] \[sin(\frac{4\pi}{3})=\frac{\sqrt{3}}{2}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How do I know that those equal those fractions? Im sorry, I understand the unit circle slightly but I use the 30 60 90 and 45 45 90 triangles usually to solve for things. Do those triangles work in this situation as well? And how do I know if they are negative?
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