Find the set on which the curve x 7 E o t2+6t+13 is concave downward. Answer (in interval notation): [j Note: Click here for information on interval notation. Find the derivative of the function: y = Vt sin t2 dt dy dx NOTE: Enter a function as your answer. help (formulas)\fEvaluate the integral by interpreting it in terms of areas. In other words, draw a picture of the region the integral represents, and find the area using high school geometry. Sy 192 10)dz = |