matematica clasa a vi-a
![Matematica Clasa A Via class=](https://ro-static.z-dn.net/files/dcb/405ca20b53e38b69eb17b146b53a7741.jpg)
Răspuns:
Explicație pas cu pas:
0,2(7) = (27 - 2)/90 = 25/90 = 5/18
0,(45) = 45/99 = 5/11
0,75 = 75/100 = 3/4
a = (5/18) : (5/11) * 3/4 - 5/6 = 5/18 *11/5 *3/4 - 5/6 = 11/24 - 20/24 = -9/24 = -3/8
I aI = I -3/8I = 3/8