Question

\[\left[\begin{matrix}1+i&1-2i\\-1+i&2+i\end{matrix}\right]\]
consider the solution
What should I do at the first step?

Answer 1

@ybarrap

Answer 2

Check if det=0.

Answer 3

yes, det =0.

Answer 4

so, just trivial solution, right?

Answer 5

That's right. Null space is empty is another way to say the same thing.

Answer 6

lalala, I am happy. thank you very much, friend.

Answer 7

you know I like these problems : )