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Va rog urgent.. Dau coroana.. Este formula lui. Gaus: (1+2+...+2743):2743

Răspuns :

[tex] \frac{1+2+3+...+2743}{2743}= \frac{2743*2744}{2}* \frac{1}{2743}= \frac{2744}{2}= 1372 [/tex]