Home
Random
Log in
Settings
Donate
About Wikiversity
Disclaimers
Search
Matrices/2x2/Antideterminant/Multilinear not alternating/Exercise
Language
Watch
Edit
Let
K
{\displaystyle {}K}
be a
field
. Show that the
mapping
Mat
2
(
K
)
⟶
K
,
(
a
b
c
d
)
⟼
a
d
+
c
b
,
{\displaystyle \operatorname {Mat} _{2}(K)\longrightarrow K,{\begin{pmatrix}a&b\\c&d\end{pmatrix}}\longmapsto ad+cb,}
is
multilinear
, but not
alternating
.
Create a solution