### Home > A2C > Chapter 7 > Lesson 7.3.5 > Problem 7-221

7-221.

Notice that this matrix is not a square.

Remember that there can only be one 1 in each column and row, and the rest of the numbers are zero.

See part (b).

7-221.

Notice that this matrix is not a square.

Remember that there can only be one 1 in each column and row, and the rest of the numbers are zero.

See part (b).