Question: (a) Find dy dz dy da expressed as a function of t for the given the parametric equations: cos' (t) 4 sin (t) d'y

(a) Find dy dz dy da expressed as a function of t for the given the parametric equations: cos' (t) 4 sin (t) d'y dz (b) Find expressed as a function of t. d'y dz (c) Except for at the points where Concave = y = Note: You can earn partial credit on this problem. dy is undefined, is the curve concave up or concave down? (Enter 'up' or 'down'). dz

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