If A=[124]𝐴=[124] and B=[235]𝐵=[235], then which of the following yields the output C=[2620]𝐶=[2620]?a.A*.B  b.A.*B  c.None of themd.A*B

The correct answer is b. A.*B

Here's why:

The operation A.*B is element-wise multiplication in MATLAB. This means each element in matrix A is multiplied by the corresponding element in matrix B.

So, if A=[124] and B=[235], then A.B would be [12, 23, 45] = [2, 6, 20] which is not equal to [2620].

The operation A*B is matrix multiplication in MATLAB. But in this case, it's not applicable because the matrices A and B are not conformable for multiplication (they are not of compatible dimensions).

The operation A*.B is not a valid MATLAB operation.

So, none of the operations yield the output C=[2620]. Therefore, the correct answer is c. None of them.