Question

Se considera matricea A=$\left(\begin{array}{ccc}3&6\\1&2\end{array}\right)$
I${2}$ = ${ \left(\begin{array}{ccc}1&0\\0&1\\\end{array}\right)}$

a) Calculati det A .

Answer 1

detA= 3*2-6*1=o
I2 nu trebuie la nimica :P

Answer 2

$Uitate in poza$