=(100+2x1)+(100+2x2)+(100+2x3)+(100+2x4)+.+(100+2x955)
=100x955+2x(1+2+3+4+.+955)
=95500+2x【(1+955)x955÷2】
=95500+955x956
=95500+912980
=1008480
102+104+106+...2010=?
=(100+2x1)+(100+2x2)+(100+2x3)+(100+2x4)+.+(100+2x955)
=100x955+2x(1+2+3+4+.+955)
=95500+2x【(1+955)x955÷2】
=95500+955x956
=95500+912980
=1008480