Question

2) Sa se determine numerele reale x,y,z,t astfel incat:
$a) \left[\begin{array}{ccc}x-3&&y-2\\-2-3z&&-1\\\end{array}\right] = \left[\begin{array}{ccc}2&&-3\\-5&&1+t\\\end{array}\right]$

Answer 1

a)
[x-3     y-2]=[2  -3]⇒
-2-3z    -1    -5   1+t
x-3=2⇒x=3+2⇒x=5
y-2=-3⇒y=2-3⇒y=-1
-2-3z=-5⇒-3z=2-5⇒-3z=-3⇒z=-3/-3⇒z=1
-1=1+t⇒t=1+1⇒t=2

succes