tion 4 aining: 4 rked out of 00 Flag Part a. Let If VF(2,1,4)=(a, b, c) then a uestion b = C Part b. Let x+By+ Cz D, be the tangent plane to the surface at the point (2,1,4). Then BO C = D = 9z F(x, y, z) 1+xy* 2 4 1+xy3 3 Answer entry help: 1. No blank spaces are allowed in the answer fields 2. If your answer a = Z please write only Z in the answer box. Note that a is already written. Thus, if you put a Z in the answer box, the system will read this as a = a=Z and will treat as a wrong answer. v 3. Write v^z Write v*z for vz (multiplication of vby z) Write In(z) for Inz (parenthesis are required) Write sqrt(z) for (parenthesis are required) Write sin(z) for sin z (parenthesis are required) Write pi for Check Last saved at 23:26:23 Q