I need help with question from homework in linear algebra.
This question (linear transformation):
http://i43.tinypic.com/15reiic.gif
According to theorem dimensions:
dim(V) = dim(Ker(T)) + dim(Im(T)).
dim(Ker(T))=2.
dim(V) in R^4, meaning =4.
We can therefore conclude that dim(Im(T))=2.
But...