### Home > A2C > Chapter 7 > Lesson 7.3.5 > Problem 7-220

7-220.

*P*is the product of two matrices, as shown below. Show each result described below or explain why it cannot be shown. Homework Help ✎*P**P*_{1,2}*P*_{2,3}

Remember to multiply the first matrix's rows by the second's column.

1,2 means row one column two.

See part (b).