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Use either Gauss Jordan [email protected] (explicit-OR) cofactor and determinant method to compute A-1_Matrix for Gauss Jordan Method (Fill the rest). Matrix for Cofactor Me...

Question

Use either Gauss Jordan [email protected] (explicit-OR) cofactor and determinant method to compute A-1_Matrix for Gauss Jordan Method (Fill the rest). Matrix for Cofactor Method: Delete last three columns and work2

Use either Gauss Jordan method @L (explicit-OR) cofactor and determinant method to compute A-1_ Matrix for Gauss Jordan Method (Fill the rest). Matrix for Cofactor Method: Delete last three columns and work 2



Answers

Evaluate the determinant of the matrix by first reducing the matrix to row echelon form and then using some combination of row operations and cofactor expansion. $$\left[\begin{array}{llll} 2 & 1 & 3 & 1 \\ 1 & 0 & 1 & 1 \\ 0 & 2 & 1 & 0 \\ 0 & 1 & 2 & 3 \end{array}\right]$$

Question. We have to find the determinant off the metrics. Mathematics is one minus 25 minus three for minus two. Gina, one toe. So we'll apply the law patients. That is how to request toe. I took last 12 1 and I'll tell you. Say questo. Say minus five. Alvin. So we will get the dominant office determinant. Office one, Juego Judo minus C minus 2 13. Jeez! 01 toe. Right now we will play the operation. As do it was toe to divided by minus two. So we will get determinant. One Gino, Gino minus 31 13. Jeez! Oh, minus one by 22 Right now! Well, I played a little opposition. I t three minus 13 times Salto. Right? So we will get the result Has Yeah one. Gino Gino minus tree one judo. Jeez. Oh, minus one by two. 17 by two multiplied by minus two Because ah, yeah, We're divided by minus two. Right? So the fact that will come off mine Esto Right. So now we will have played a little oppression that this art is a questo are divided by 17 by two. So we'll get 17 by two. Mhm. The metrics will be one Gino Gino, minus 31 Judo Jesus minus one by to anyone. Right. We know this is upper triangular matrix. Therefore, the determinant will be one so minus two into 17 by two into one, which is a close to minus 17. So minus 70 is the determinant office.

So in the u in question were to find the determinant offer you that. So first of all, we'll apply the oppressions. The oppressions are r two equals toe are two plus two times so far one and all four is equals to all four minus two times off altri Right? So when we apply these tools, operators, all operations, you will get the determinant off years one. Gino, Gino, Gino Gino three minus one Judah Judah Judo. She 56 38 one minus 11 Right? No, we will apply that. All positions that is I'll fight is equals toe our father minus all for So we will get okay determinant as mhm. Right now we can make this determinant as a triangular did metrics right by taking minus one from the lotto and a coffee she and off to from the law five. So we'll get the determinant us minus one, multiplied by two multiplied by the dominant off. The angular medics will become one. So this is a quest minus two. So determinant is minus two

So in the young question. Where to find them in a day that is. Three minus two Ojeda minus 671 nine minus to fight. We can take factor three from no one. So we'll get one minus 23 The hashtag The dance are similar, right? No. Uh, now we can add twice low one toe. Right. So you will become Ah, two plus twice. Often Govan. Right. So we can simplify one Cheese Ojito. Yes. Minus 231 345 Right now, Uh, in fact, er three from the door to right. So it will become three multiplied by three. We took the factors. Three from the door toe. So we'll get 34 by three. And if I right now? Well, now we will play opposition. That is, subtract low to from the door. Three. So rt will become rt minus, uh, to right. So we will get that isn't as three in the tea. 100 minus 210 34 by three. He learned by three. Right now we'll take factor off the land by three from the lottery. So get one. Gino Gino four by three, minus two and they like. Now we know that the dominant off this metrics will be one. And this is a once too tard et so determinant off the magic says started, Yeah.

Again. Question. We have to find the dominant off A. That is today's judo minus two. 16. 01 minus nine. Minus 25 Right So fast. Well, I play the law. Oppression, that is Calvin is changed. Changed to 11 by three. So we'll get to the determinant off one Jada minus two, 201 minus three minus 25 Like now we will play the opposition. Ivan Dash 12, 3 plus two hours. So we didn't get to the one Gino Gino, who would unify minus C minus 21 minus one. Right now we left side of the audition. Will the exchange our toe by artery? Right. So really good Minus when we have to multiple A Because we're exchanging. So one judo 0 to 50 minus three, minus one minus two. Thank you. Now we have to. I played a little collection. Are too. It was so hard to buy five and all three is a close to minus all three by two. So when you play these the ah patients, we will get the metrics as five multiplied by minus two. Later. Minute off. Bandido Jill 02 of Angelo minus three minus one by five one Thank you. So we can see that this is a triangular metrics and the the since this is a bad angle on Matic. So the determinant off this medics is one. So we'll get minus one in tow. Three into five into minus two into one, which is a class totality. So the determinant off the metrics study.


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