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farmd684
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Gauss Jordan Elemination Method (Stucked)!
5x1+3x2+2x3=4
3x1+3x2+2x3=2
+x2+x3 =5
I have to solve this problem by calcutaing the inverse if this equation's augmented matrix
I used this method to find its inverse
5 3 2 1 0 0
3 3 2 0 1 0
0 1 1 0 0 1
My goal is to make first matrix to Identity matrix like the second one
So far here is my workings
1ST STEP: R1/5 R2/3
2ND STEP: R3*(3/5)
3RD STEP: R2=R1-R2
4TH STEP: R1=R1-R3 R3=R3-R1
5TH STEP: R2*(-5/2)
6TH STEP: R3*(1/5)
7TH STEP: R1=(1/5)R3+R1 AND R2=R2+(-2/3)R3
Then the first one becomes Identity matrix but the result is not right :(
Pls check the steps if i have done anything wrong or suggest me any techniques so that i can solve these type of problems with no confusions.I m having many problems with these maths.Pls help
Homework Statement
5x1+3x2+2x3=4
3x1+3x2+2x3=2
+x2+x3 =5
I have to solve this problem by calcutaing the inverse if this equation's augmented matrix
Homework Equations
I used this method to find its inverse
5 3 2 1 0 0
3 3 2 0 1 0
0 1 1 0 0 1
My goal is to make first matrix to Identity matrix like the second one
The Attempt at a Solution
So far here is my workings
1ST STEP: R1/5 R2/3
2ND STEP: R3*(3/5)
3RD STEP: R2=R1-R2
4TH STEP: R1=R1-R3 R3=R3-R1
5TH STEP: R2*(-5/2)
6TH STEP: R3*(1/5)
7TH STEP: R1=(1/5)R3+R1 AND R2=R2+(-2/3)R3
Then the first one becomes Identity matrix but the result is not right :(
Pls check the steps if i have done anything wrong or suggest me any techniques so that i can solve these type of problems with no confusions.I m having many problems with these maths.Pls help