Question

Matrice

Answer 1

\[A= \left[\begin{matrix}1+i & i \\ 2 & 1-3i\end{matrix}\right] B=\left[\begin{matrix}i & 0 \\ 0 & 2i\end{matrix}\right]\]

Answer 2

what is \[A ^{*}\]

Answer 3

@wio

Answer 4

Do you know what the complex conjugate is? It's really simple! It's that little star and all it means is everywhere you see an i you multiply it by -1.

So for example the complex conjugate of this is just: \[\LARGE (i3+4^i)^* = (-i3+4^{-i})\]

Answer 5

@Kainui how to do this \[(AB)^{*}\]