Răspunsuri

2014-08-19T19:49:51+03:00
A)8(1+2+3+...+125) :(1+2+3+.....+125)= 8

b)8(1+2+3+....+100 000): (1+2+3+....+100 000)=8

c)1+3+5+7+...+1999-2-4-6-8-.....-1998= 1+(3-2)+(5-4)+(7-6)+...+(1999-1998)=

=1+1+1+1+.....+1   }1999 ori

=1*1999= 1999