http://orion.math.iastate.edu/vika/cal3_files/lec33267.pdf [Broken](adsbygoogle = window.adsbygoogle || []).push({});

i searched eigenvectors on google and this showed up. here are some problems i need further explaining for example 3 and 4.

3. where do they get e1+e2= 0 equation from? then where did they get e= (1,-1)

4. where do they get the e1+2e2+e3= 0 eq from?

any help would really be appreciated...i understand how to get the eigenvalues but i have no clue what to do to get the vectors

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# Eigenvector help

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