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Consider the parametric equations x = 5 - t^2 , y = t^3 - 48t a....

Consider the parametric equations x = 5 - t^2 , y = t^3 - 48t a. Find dy dx and d 2y dx2 , and determine for what values of t is the curve concave up, and when is it concave down. b. Find where is the tangent line horizontal, and where is it vertical.

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