AP Precalculus Quiz
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FUNCTIONS INVOLVING PARAMETERS, VECTORS, AND MATRICES
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A pendulum of length 2 m2\text{ m} swings with θ(t)=0.6cos⁡(πt)\theta(t)=0.6\cos(\pi t) (radians): x(t)=2sin⁡θ(t)x(t)=2\sin\theta(t), y(t)=−2cos⁡θ(t)y(t)=-2\cos\theta(t). What is position at t=0t=0?
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