Question

Cum trebyie sa fac la acest exercitiu
2+4+6+....+2006??

Answer 1

2+4+6+....+2006 =
=2( 1+2+3+....+1003)
= 2 ori (1003 ori 1004 supra 2)
se simplifica 2 cu 2 si = 1003 ori 1004=1007012

Answer 2

2+4+6+....+2006=
=2(1+2+3+....+1003)=
=2*1003*1004:2=
=1003*1004=1007012