Question

Sec 6.2

1.Write an augmented matrix for the following system of equations.

9x-8y+6z=-1

7x-5y+2z=9

6y-8z=-9

The entries in the matrix are ?

2.use row operations on the augmented matrix as far as necessary to to determine whether they system is independent, dependent, or inconsistent ?

4x-6y+5x=-2

-8x+12y-10z=4

-12x+18y-15z=6

3. use row operations on the augmented matrix as far as necessary to to determine whether they system is independent, dependent, or inconsistent ?

5x-7y+4z=13

-5x+7y-4z=-15

-10x+14y-8z=-27

4. Solve the system by any method.

x+4y-2z =4

3x+7y-2z + w =9

2x+3y +w =6

Answer #1

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