Unit circle proof
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1) Prove from the unit circle that sin²⊖ + cos²⊖ = 1. Using the result describe the equation for which x = 3 + 2cos⊖, y = 1 + 3sin⊖.
2) Using problem one simplify sin²⊖/(1 + cos⊖) + sin²⊖/(1 - cos⊖)
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Solution Summary
This uses the unit circle in a proof, and uses the proof to solve a trigonometric equation.
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