Find the maximum volume V (in cm3 ) of a cylindrical soda can such that the sum of its height and circumference is 270 cm. V=π232047×cm3 Find the point on the surface f(x,y)=x2+y2+18 nearest the plane x+2y−z=0 (x,y,z)=(21,1,477 Identify the point on the plane. (x,y,z)=(21,1,239x)
