Se considera matricele:
I3= 1 0 0
0 1 0
0 0 1
O3= 0 0 0
0 0 0
0 0 0
A (a)= 1 a a+1
0 1 a+2
0 0 1
Sa se afle:
A (2)+A (4)+ A (6)+.......+A(100)=50A (51)
Va rog frumos...