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Alyyalynuta
a fost răspuns

1+1/3+1/3²+1/3³+1/3 la a4-a =
rezovare amanuntita pls :3

Răspuns :

1+1/3+1/9+1/27+1/81= aducem la acelasi numitor care este 81
(1x81)/81+(1x27)/81+(1x9)/81+(1x3)/81=
(81+27+9+3)/81=120/81simplif.cu 3=40/27=1,(481)

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