30. By hand (pencil and paper) write what will be displayed if the followins g com mands are executed by MATLAB. Check your answers by executing the mands with MATLAB. (Parts (b), (c), (a), and (e) use the vector defined in part (a).) (a) a 1:4:17 (b) b- [a (1:3) a] (c) c [a;a] that was 31. The following vector is defined in MATLAB: v6 11-4 58 1-0.2-7 19 5 By hand (pencil and paper) write what will be displayed if the following com- mands are executed by MATLAB. Check your answers by executing the com- mands with MATLAB (a) a-v (3:8) (b) bev(i,3,2:7,4,6]) () ([9, 1,5,4]) 32. The following vector is defined in MATLAB: v 611-45 81-0.2-7 19 s By hand (pencil and paper) write what will be displayed if the following com- mands are executed by MATLAB. Check your answers by executing the com- mands with MATLAB. (a) a- [v ([1:3 7:-1:5]) iv([10,1,4:6,21)1 b) ba [v( t9,2:4,11) v(t5 3 10 2 7])' v([10:-2:4,10]) '] 33. Create the following matrix A. 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 By writing one command and using the colon to address range of elements do not type individual elements explicitly), use the matrix A to: (a) Create a six-element row vector named ha that contains the elements of the second row of A. ments of the sixth column of A. ments of the third row of A and the last three element of the first row of A. (b) Create a three-element column vector named hb that contains the ele- (c) Create a five-element row vector named he that contains the first two ele