Răspuns :
2+4+6+...+200= 2(1+2+3+...100)= 2(100×101):2= 2×50×101= 100×101= 10100
2+4+6+...+200=
=2×(1+2+3...100)=
=2×[(100×101):2]=
=2×(10100:2)=
=2×5050=
=10100
Sper ca te-am ajutat!Succes!
=2×(1+2+3...100)=
=2×[(100×101):2]=
=2×(10100:2)=
=2×5050=
=10100
Sper ca te-am ajutat!Succes!