Picture say all ik its easy but im stuck somehow:/

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- Nov 24th 2012, 12:17 AMPetrusMatrix equation
Picture say all ik its easy but im stuck somehow:/

- Nov 24th 2012, 12:38 AMfkfRe: Matrix equation
You can solve it with co factor expansion since we know that the determinant is going to be zero.

We then have

(1)*(x-x)-(x-1)(x^2-4)+(-1)(x^2-4) = 0 <=> x_1 = -2, x_2 = 0, x_3 = 2 - Nov 24th 2012, 01:35 AMPetrusRe: Matrix equation
Thats not how i shall solve it.. Factor is like next chapter they somehow solve this equation with that det

- Nov 24th 2012, 02:43 AMfkfRe: Matrix equation
Can you specify how you are supposed to solve calculate the determinant?

- Nov 24th 2012, 02:56 AMPetrusRe: Matrix equation
Its the (2) the prob i get same but dont get -x^3Attachment 25887

- Nov 24th 2012, 03:11 AMfkfRe: Matrix equation
- Nov 24th 2012, 03:21 AMPetrusRe: Matrix equation
Just u type it made me solve it idk why but now i understand it!!! Ty alot:)