MATLAB Basics set 20

Que.If A and B are two matrices, such that a./b=b.\a, what is concluded?
a. Nothing special
b. A = A
Que.What is the difference between a[] and a{}?
a. a[] is for empty cell array while a{} is for empty linear array
b. a[] is for empty linear array while a{} is for empty cell array
c. No difference
d. a[] is an empty row vector while a{} is an empty column vector
Discussion
Que.Choose the function to solve the following problem, symbolically, in the easiest way.
3x+y=5 and 2x+3y=7

a. linsolve(x,y) where x and y are the co-efficient and result matrix respectively
b. solve(x,y) where x and y are the co-efficient and result matrix respectively
c. sol(x,y) where x and y are the co-efficient and result matrix respectively
d. the equations are not solvable
Discussion
Que.What is the output of the following code?
A=[1 2 3..
        ];

a. The output is suppressed
b. A row vector
c. A row vector concatenated with a null matrix
d. Error
Discussion
Que.What is the output of the following code?
A=[1 2 a..;
         ];

a. Error due to a
b. Error due to A
c. Error due to [];
d. Error due to ;
Discussion
Que.What is the output of the following code?
A=[1 2 ‘a’;…
          ];

a. Error due to ‘a’
b. Error due to ‘…’
c. Error due to []
d. ‘a’
Discussion
Que.What is the output of the following code?
A=[1 2 ‘a’;…
  ‘f’ ‘q’ ‘w’];

a. A 2*3 character array
b. A 3*2 character matrix
c. A 3*2 character vector
d. A 2*3 character vector
Discussion
Que.What is the output of the following code?
A=[1 2 ‘a’;…
   ‘f’ ‘q’ ‘w’;…
   ]];

a. Syntax Error
b. A 2*3 character matrix
c. The concatenation of 2 vectors, vertically, with size 3
d. Cannot be determined
Discussion
Que.What is the output of the following code?
A=[1 2 ‘a’…;
   ‘a’ ‘b’ ‘c’;…
           ];

a. Error in syntax
b. A 3*2 matrix of characters
c. Error due to 1 and 2
d. Error due to a
Discussion
Que.What is the output of the following code?
A=[1 2 ‘a’….;
‘a’ ‘b’ ‘c’;…
           ];

a. A 1*6 matrix
b. A 6*1 matrix
c. Error in the code
d. Error in ellipsis
Discussion