Attachment 25872Hello! There is a example that i dont get same result:/

So ima post the problem and the formula or what u say hope some1 can understand because i get the last one to 2,0,1,x^2. I am wrong or the book

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- Nov 23rd 2012, 12:35 PMPetrusMatrix
Attachment 25872Hello! There is a example that i dont get same result:/

So ima post the problem and the formula or what u say hope some1 can understand because i get the last one to 2,0,1,x^2. I am wrong or the book - Nov 23rd 2012, 02:06 PMchiroRe: Matrix
Hey Petrus.

The book is right.

The expansion of the determinant of a 2x2 matrix with structure [a, b; c, d] (as represented in Octave) gives a result of a*d - b*c for the determinant.

Try using the formula to expand the result. - Nov 23rd 2012, 02:14 PMPetrusRe: Matrix
But wtf im kinda confused... Ik the rule work so but look at the rule we did get.. Goosh this got confused

- Nov 23rd 2012, 02:17 PMchiroRe: Matrix
If you can outline the specific problem you have the other readers can do their best to address it.

- Nov 23rd 2012, 02:25 PMPetrusRe: Matrix
Ok after alot thinking i did get ut:) i was just confusing myself ty