question 1 and 2 are linked

QUESTION 15 For Questions 15 through 21, refer to the removectors a and b defined below. a = [1 527]: b = [2 3 4 0]; 15. The matrix M = [1 527; 2 340] can be formed by the command 1. M=[a, b]; 2. M=(a, b); 3. M=(a', b']; 4. M=[a'; b']; QUESTION 15 For Questions 15 through 21, refer to the row vectors and definiclow a = [1 5 2 71; b = [2 3 4 0); 15. The matrix M=[1527;2340] can be formed by the communandi 1. M=[a, b]; 2. M=[a, b]; 3. M=[a b] 4.M=[a b]. QUESTION 16 16. The matrix N = [1 2;5 324,70] can be formed by the command 1. N=[a (:), b(:)]; 2. =[a, b] 3. N=la, b'] 4. All of the above commands. ZIONE