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Scrie ca numar zecimal fractia ordinara 2+4+6....+46.
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3+6+9....+72
Pls repede exercitiul 2


Scrie Ca Numar Zecimal Fractia Ordinara 24646 36972 Pls Repede Exercitiul 2 class=

Răspuns :

2+4+6+...+46/3+6+9+...+72=

=2(1+2+3+...+23)/3(1+2+3+...+24)=

=2×23×24/2/3×24×25/2=

=23×24/75×12=

=23×2/75=

=46/75=

=0.61(3)