QUESTION 6 10 points Save Answer Let F=Vf, where f(x,y,z)=x y z+z , and let S be the surface boundary of the solid E = { (x,y,z)ERS : x2 +y2+ z?s1, x20, y20, z20}. Let I= |F.ndo. Let h(x,y)= -2x3+9x2-12x-y2. Choose the TWO correct statements. Oh (x,y) has a local minimum at (2,0). 5 TT 12 3 n Of=- 4 O (1,0) and (- 1,0) are local extrema of h(x, y) Oh (x,y) has no local minima. Oh (x,y) has a saddle point at (0,0) OI=. 2 5 TT