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    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⊖)

    © BrainMass Inc. brainmass.com March 4, 2021, 6:06 pm ad1c9bdddf
    https://brainmass.com/math/trigonometry/unit-circle-proof-29160

    Solution Summary

    This uses the unit circle in a proof, and uses the proof to solve a trigonometric equation.

    $2.49

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