041-2015

MO640 - Multiple-choice question

If ρ = (u v)(π_adjv π_adju) , which elements should u and v be so that ρ turns π into σ?

 

1. u = b, v = f
2. u = b, v = -f
3. u = c, v = -e
4. u = -c, v = e
5. None of the above.

Original idea by: Juan Felipe Hernández Albarracín.