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1. ### help with linear algebra invertible matrix?1?

It's invertible if the determinant is zero, so find the determinant. aei + bfg + cdh - gec - hfa - idb = 0 0 + -cb + bc - -b² - -c² - 0 = 0 0...

1 Answers · Science & Mathematics · 09/02/2014

2. ### How to show detA=0, then det(adjA)=0 if A is a 3x3matrix?

...d e f | |g h i | then its determinant is : det (A) = aei − afh + bfg − bdi + cdh − ceg. 1) Equate that to 0 and you have equation...

2 Answers · Science & Mathematics · 13/10/2009

3. ### given the following system of the three equations?

... after the equals sign. The determinant can be founded by (aei+bfg+cdh)-(gec+hfa+idb). Here is the matrix clearly presented here...

2 Answers · Science & Mathematics · 29/11/2011

4. ### Find the determinant?

The determinant of a 3x3 matrix [a b c] [d e f] [g h i] is aei+bfg+cdh-gec-hfa-idb, so (14*8*5) + (-13*-1*-10) + (0*3*-2) - (-10*8*0) - (-2*-1...

3 Answers · Science & Mathematics · 19/08/2007

5. ### impossible math question!?

...be with F and G while C is with D and H. AEI BFG CDH 4th day, we select the remaining groups...

2 Answers · Science & Mathematics · 19/09/2012

6. ### Simple Matrix Question?

...? Example: [ a b c ] [ d e f ] [ g h i ] has determinant aei + bfg + cdh - afh - bdi - ceg. For yours, it would be 45 + 84 + 96 - 48...

4 Answers · Science & Mathematics · 23/05/2007

7. ### Use Cramer's rule,if possible, to solve the system of linear equations. Algebra!!!?

...d e f | | g h i | is evaluated as follows: D = aei + bfg + cdh – ceg – afh – bdi. In the case of the first determinant...

1 Answers · Science & Mathematics · 21/07/2008

8. ### matrices kill me! why did I get these wrong!?!?

...1=-2 a b c d e f g h i the -2 is derived from this, aei+bfg+cdh-ceg-bdi-afh=determinant yes AB is multiplying ...

2 Answers · Science & Mathematics · 30/07/2010

... of the alphabet there are 6 consonants and three vowels (AEI) Therefore the last number to be a consonant has a probability...

2 Answers · Science & Mathematics · 14/12/2012

10. ### show that in 3 x 3 determinant if one row is 0, the value of the determinant is 0?

a b c d e f g h i the value of this determinant is aei + bfg + cdh - ceg - afh - bdi if one row is zero then all the components are zero and sum of them is zero too

3 Answers · Science & Mathematics · 05/05/2010