Question

finding the eigen value

Answer 1

\[\lambda(\lambda-4)(\lambda-3)+7-9(\lambda-4)-(\lambda-3)=0\]

Answer 2

@lawls

Answer 3

uhhh

Answer 4

guess

Answer 5

\[\lambda = .... ,. ..??\]

Answer 6

what was ur matrix

Answer 7

i wanna see how u got that 7 there

Answer 8

check 2 and -2

Answer 9

are you trying to diogonalize ?

Answer 10

Why not distribute everything and make it of the form \[\LARGE a \lambda ^3+b \lambda^2+c \lambda + d=0\]

Answer 11

You can then graph it on your calculator and use that to essentially "guess" the factors.

Answer 12

there seems to be something wrong.. usually the matrix is cooked up such that the characteristic eq'n is easily solvable..

Answer 13

http://www.wolframalpha.com/input/?i=solve+x%28x-4%29%28x-3%29%2B7-9%28x-4%29-%28x-3%29%3D0

Answer 14

\[\lambda( \lambda^2-7*\lambda+12)+7-9\lambda+36-\lambda+3\]

Answer 15

\[\lambda^3-7*\lambda^2+12*\lambda+7-10\lambda+46=0\]

Answer 16

\[\lambda^3-7\lambda^2+2\lambda+53=0\]

Answer 17

\[\lambda=-2.28, 4.64 , 4.64\]