👤

CAlculati suma S=4+8+12+....+2012


Răspuns :

S=4+8+12+...+2012
S=4[1+2+3+...+503]
S=4[503·504/2]
S=4[503·252]
S=4·126756
S=507024;
S=  4*(1+2+3+...+503)
S=4*(503*504/2)
S=4*(503*252)
S=4*126756
S=507024
Sper ca  te-am  ajutat!