4 Answered Questions for the topic Reduced Row Echelon Form

Reduced Row Echelon Form Linear Algebra

03/04/20

#### Reduced Row Echelon Form

Compute the reduced row echelon form of each of the follow matrices:
(a)
[ 2 1 ]
[ -3 -2 ]
(b)
[ 3 -3 -3 ]
[ 2 -3 -4 ]
(c)
[ 2 2 ]
[ 3 0 ]
[ 1 0 ]
(d)
[ 1 -2 0 ]
[ -2 4 -1 ]
[ 2 -4 -1 ]

09/09/18

#### How do you solve a systems of equations using rref when the system in dependent?

In my case, after I used the rref function on my calculator to solve the equations:
x − y + 7z = 3x − y + 8z = 2
It gave the following as a matrix:
1 -1 0 10
0 0 1 -1
I think this...
more

09/09/18

#### When you have a 4x4 matrix that includes only 3 variable in the system, which variable is d?

Ex:
x + y − z = −5x − y − 7z = 70.75x − 0.5y + 0.25z = 18x + y + z = 1
If a=x, b=y, and c=z, what is d?

#### Solve the system by finding the reduced row-echelon form of the augmented matrix.

x+2y-4z=-4
-x-y+3z=z
x+3y-5z=-6
How many solutions are there to this system?

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