Consider the following. sin(30), y=cos(). X = y = -π< θ< π (a) Eliminate the parameter to find a Cartesian equation of the curve. (b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases. y y to to -0.5 0.5 10 -0.5 0.5 10 -0.2 -0.2 -0.4 -0.4 -0.6 -0.6 -0.8 -0.8 y y tot 1.01 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 X 1.0 X -1.0 -0.5 0.5 -1.0 -0.5 0.5 1.0

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