Question

Dacă a = 0,(2), calculati 1supra a
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Answer 1

a = 0,(2) = 2/9

1/a = 1/(2/9) = 1* 9/2 = 9/2

Cand impartim doua fractii, o inmultim pe prima (in cazul nostru 1/1) cu a doua rasturnata.

Answer 2

Salut,

$a=0,(2)=\dfrac{2}{9},\ deci\ \dfrac{1}a=\dfrac{1}{\dfrac{2}9}}=\dfrac{9}2.$

Green eyes.