Question

Cu cat este egal? Si daca puteti, va rog sa imi trimiteti rezolvarea scrisa pe o foaie
va rogg! Repedee

Answer 1

0,(4)=4/9

0,0(4)=4/90

1/4+1*9/4+1*90/4= 1/4+9/4+90/4=100/4=25

Answer 2

Salut,

$\dfrac{1}4+\dfrac{1}{0,(4)}+\dfrac{1}{0,0(4)}=\dfrac{1}4+\dfrac{1}{\dfrac{4}{9}}+\dfrac{1}{\dfrac{4}{90}}=\\\\\\=\dfrac{1}{4}+\dfrac{9}{4}+\dfrac{90}{4}=\dfrac{1+9+90}{4}=\dfrac{100}4=25.$

Green eyes.