Hello I need help with the following 11,13,14,15,and 16 please

11 Use the second derivative test to show f(x) = rtan has a minimum at x = 0. 12 Find the dimensions of the rectangle of maximum area inscribed in a circle of radius R. 13 Find the dimensions of the isosceles triangle of maximum area inscribed in a circle of radius R. 14 Use differentials to approximate sin(0.05) and v22. Compare your results to the exact values. Part III: Curve Sketching 15 Use the first and second derivative charts to sketch h(x) = x' - 4 12 + 4 Find the horizontal asymptote. 16 Use the first and second derivative charts to sketch q(I) = 12 - 12 Find any asymptotes