1.

Suppose a curve is traced by the parametric equations :1: = 3(sin{t) + cos(t)) y = 28 600526} 12 sin(t] as t runs from U to 71'. At what point (at, y) on this curve is the tangent line horizontal? m: y: Calculate the length of the path over the given interval. on) =(5t2,1[}t3), 2 1:. t g 4 C] Calculate the length of the path over the given interval. (sin 0 - 0 cos 0, cos 0 + 0 sin0), 0