14.You want to build a rudimentary square canopy. The amount of material required to cover it will be A = x2 + 4x32. The volume inside of the canopy will be V = 3:23;. If you can afford 420 square yards of material, what is the largest possible volume of the canopy? 15.Find the equation of the tangent line to f(x) = ln(x) 4cosz(1 x) at x = 1