Enable text based alternatives for graph display and drawing entry

Try another version of this question

Give the reduced row echelon form of the augmented matrix

`[(1,4,-2,200),(0,1,1,350),(0,0,1,400)]`
 
 

Get help:


↑
X
MathQuill
   x  x  √  n√  |   | (   ) π ∞ DNE
   x  √  (   ) π ∞ DNE
( ) ( ] [ ) [ ] —∞ ∞ ∪ DNE
< > ≤ ≥ or All Real Numbers DNE
log logn ln n√  | | e 
sin cos tan arcsin arccos arctan ⟨ ⟩
[more..]