Just need help identifying pivots columns
1 & 1 & 1 &1 &1\\
0& 0& 0& 0&0\\
0& 0& 0& 0&9
From my understanding, any column with 1s and everything below it 0s are all pivot columns right?
Is the above all pivot columns? Also for a 3 x 5 coefficent matrix that has three pivot columns, is the system consistent?
The book says it is not, but why? The one above is a counterargument given by me. Does anyone know the LaTeX code to make an augmented matrix? Like put a bar before the constants