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Cineva91
a fost răspuns

(1,01+2,02+3,03+....+9,09)×0,03​

Răspuns :

Rayzen

(1,01+2,02+3,03+....+9,09)×0,03​

= 1,01×(1+2+3+...+9)×0,03​

= 1,01×[(9×10)/2]×0,03​

= 1,01×9×5×0,03

= 9,09×0,15

= 1,3635

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