Posted by Joy on Tuesday, July 30, 2013 at 4:57am.
The augmented matrix A represents a system of three realvalued equations in three unknowns. Which of the answer choices would result from the usual first step of applying GaussJordan elimination?

Discrete Mathematics  Joy, Tuesday, July 30, 2013 at 6:48am
Sorry this follows this question as follows:
A = 1 4 2 3
2 9 13 18
3 10 8 15