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Calculeaza (4+8+12+...+2012):(2+4+6+...+1006)=

Răspuns :

(4+8+12+...+2012):(2+4+6+...+1006)=[4(1+2+...+503)]/[2(1+2+...+503)]=2
=2(2+4+6+...+1006)/(2+4+6+...+1006) = 2

Succés in continuare!