. The curve with parametric equations x = (1 + 2 sin 0) cos 0, y = (1 + 2 sin 0) sin 0 is called a limaçon and is shown in the accompanying figure. Find the points (x, y) and the slopes of the tangent lines at these points for a. 0 = 0. b. 0 = 1/2. с. Ө %— 4п/3. х 2.

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