谁帮我看一眼。linear 不回了

[Stifler]

Matrix Powers
Let A be the matrix of size 2x2 which is the sum of
-4 1
2 -4

and
0 14
-4 11


Diagonalize A and use this to find a formula for Ak.
Answer: what is the bottom left entry (second row, first column) of the matrix A8?

 

[Stifler]

a=p*c*1/p

then

p=[Rev Imv]

c=[a -b]
=[b a]

 

[想哭的眼泪]

不会，等我晚些看完书的再告诉你

 

[干里量]

^^

 

[Stifler]

lol..tnx

 

[Sunnyboy]

最初由 Assticker 发布
Matrix Powers
Let A be the matrix of size 2x2 which is the sum of
-4 1
2 -4

and
0 14
-4 11


Diagonalize A and use this to find a formula for Ak.
Answer: what is the bottom left entry (second row, first column) of the matrix A8?

this question is so gay, i tried 2 times, all failed, damn it

 

[狮蝎子]

1+1=2

 

[Stifler]

i know the way,right now, but hard to describe..busy on study...2 tests tomorrow

 

[无忧黄雨]

what does "imaginary part" mean?

 

[Stifler]

0+bi


its on appendix b..

 

[无忧黄雨]

you mean if one of eigenvalue is T=A+Bi
then B is the imaginary part?

 

[Stifler]

Bi...

 

[Stifler]

3+5i

then 5i is imagine part...

 

[Stifler]

post up the question, i will tell you

 

[无忧黄雨]

Let A be the matrix of size 2x2 which is the sum of
-3 1
2 -3

and
0 14
-4 11

just tell the way to solve please