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Horodincurober
a fost răspuns

Calculati: (3+6+9+...+300):(1+2+3+...+100)

Răspuns :

(3+6+9+...+300):(1+2+3+...+100)=

3(1+2+...+100):(1+2+...+100)=3
Leila1231
(3+6+9+.....+300):(1+2+3+.....+100)

3×(1+2+3+.....+100):(1+2+3+.....+100)
n×(n+1):2
100×101:2=5050
5050:5050=1
3×1=3


SUCCES !

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