If you are just interchanging rows they stay exactly the same. You can interchange two rows then you can multiply one row by -1 if you like. You can think of it as interchanging rows and multiplying by a scalar. Basically two of the three elementary row operations performed at the same time. Hopefully this helps. 😁
The three row operations can be found at:
0:20 Swap/switch rows
1:08 Multiplying a row by non-zero constant/scalar
2:37 Row addition
Have a nice day!
very very helpful
Great to hear, hope all is well at the beginning of a new academic year!
Insanely helpful, clean, clear and to the point. Thanks a lot man
Thanks for the kind comment!
thanks teacher it so good
🫡
But when interchanging row does the sign also change ?
If you are just interchanging rows they stay exactly the same.
You can interchange two rows then you can multiply one row by -1 if you like. You can think of it as interchanging rows and multiplying by a scalar. Basically two of the three elementary row operations performed at the same time.
Hopefully this helps. 😁
@@JoeCMath it sure does.. thanks alot 😃