Question

CALCULEAZA SUMA 2+4+6+.....+102

Answer 1

S=2+4+6+.....+102
S=2( 1+2+3+..+51)
S= 2×$\frac{51*52}{2}$
S=2×$\frac{2652}{2}$
S=2×1326
S=2652
Baftă!

Answer 2

S=2+4+6+...+102 S=102*103:2 S=10506:2 S=5253