Question

elementery
Row transformation.
2 -1 4
4 0 2
3 -2 7​

Answer 1

Answer:

Step-by-step explanation:

Elementary Operations. There are three kinds of elementary matrix operations. Interchange two rows (or columns). Multiply each element in a row (or column) by a non-zero number. Multiply a row (or column) by a non-zero number and add the result to another row (or column).