Which of the following are valid row operations for augmented matrices?Switch positions of two rows.Add elements of one row to another row.Multiply elements of one row by another row.Multiply elements of one row by a scalar.Raise elements of a row to a power.
A
Switch positions of two rows.B
Add elements of one row to another row.C
Multiply elements of one row by another row.D
Multiply elements of one row by a scalar.E
Raise elements of a row to a power.