1.

What does the following piece of code do? for(int i = 0; i < row; i++) {       for(int j = 0; j < column; j++)     {         if(i == j)             sum = sum + (array[i][j]);     } } System.out.println(sum);

A. Normal of a matrix
B. Trace of a matrix
C. Square of a matrix
D. Transpose of a matrix
Answer» C. Square of a matrix


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