Question

3
9. Using matrix method, show that the equations 3x + 3y + 2z =1 x + 2y = 4 10y + 3z=-2 2x – 3y-z = 5 are consistent and hence
obtain the solutions for x, y and z.
Ans: x=2 y=1 and
z=-4​

Answer 1

Step-by-step explanation:

3(2)+3(1)+2(-4)= 6+3-8= 1

2+2(1) =4

10(1)+3(-4) =-2

2(2)-3(1)-(-4)=4-3+4=5