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Ma puteti ajuta? Am nevoie urgenta de rezolvare a ex: 5


Ma Puteti Ajuta Am Nevoie Urgenta De Rezolvare A Ex 5 class=

Răspuns :

a. [A₀A₂₀₀₅]=A₀A₁+A₁A₂+A₂A₃+...+A₂₀₀₄A₂₀₀₅=
1cm+2cm+3cm+...+2005cm=
2005·2006/2 cm=
2005·1003 cm=
2011015cm;
b. A₀A₁₀₀₂/A₀A₂₀₀₄=
1002·1003/2/2004·2005/2=
501·1003/1002·2005=
1003/2·2005=
1003/4010=0,2501cm;