Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: De les següents matrius, quina és la inversa de la matriu [[-2·a,-1],[-3,1]]? a) -1/(2·a+3) · [[1,1],[3,-2·a]], b) -1/(2·a+3) · [[2·a,1],[3,-1]], c) -1/(2·a+3) · [[-1/(2·a),1],[-1/7,1]], d) -1/(2·a+3) · [[1,3],[1,-2·a]]
Right answer summary: The content can not be displayed.
Question state: todo