10. What would be the correct way to write the following equation in the mattab? (1 point) (a) x=3a2bn3+3ab (b) x=3a2b3 +3ab (c) x=3a2b3 +3ab 11. Which of the following commands can be used to obtain the matrix B from the matrix A ? (1 point) A=[8,5,6;2,5,0:2,1,7;0,0,0] B=[5,0;1,7]; (a) B=A([31],[22]) (b) B=A([13],[23]) (c) B=A([23],[23]) (d) B=A([32],[2:3]) 12. What would be the output of the following code? ( 1.5 points) A=[356;679;012;385];B=A(:2) (a) B=[571] (b) B=[3;6;0;3] (c) B=[679] (d) B=[5;7;1;8] 13. The variables cannot be accessed after running the following command? (1 point) (a) eye(3,3) (b) clear all (c) clc (d) close all 14. What would be the output of the following code? (1.5 points) A=[1472;1040;9047];B=[A(3,:);A] (d) B=[1472;104 0;9047;9047] 5. What would be the output of the command 'length (A) ' for the following matrix A? (1 point) A=[8,5,6;2,5,0;2,1,7;0,0,0] (a) [43] (b) 2 (c) 3 (d) 4