looking for someone who have strong algebra skills to deal with this question ; thanks http://adf.ly/1JGfry

Question

looking for someone who have strong algebra skills to deal with this question ; thanks                                                                                                                                        http://adf.ly/1JGfry

isaiah.feynman · Answer

Sure its the right link?

anonymous · Answer

yes try this http://img11.hostingpics.net/pics/189241alg.png

anonymous · Answer

Been a while since I've done linear algebra...for now I'll tag someone @Michele_Laino |dw:1434688448075:dw|

anonymous · Answer

Haha, as do I, I remember doing similar problems but it was about 2 years ago...

anonymous · Answer

i think d should be d = (4  ;0 ,:0 )

michele_laino · Answer

it is the solution, nevertheless I think there are many  pairs matrices A  and column b such that they admit that solution

anonymous · Answer

R is in reduced row echelon form, ??

anonymous · Answer

since R is in reduced row echelon form, we must have

d = $$\left[ d = 4  :  0  ;  0\right]$$400


The other two vectors provide special solutions for R, showing that R has rank 1:
again, since it is in reduced row echelon form, the bottom two rows must be all 0   so here you have to continu alone because i give you all the key

anonymous · Answer

oh thank you i realy understand thank you again @Thesn1