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0,(2)+[0,(3)] la puterea a doua

Răspuns :

2/9+(3/9)²=2/9+(1/3)²=2/9+1/9= (2+1)/9=3/9=1/3
Succes!! :*
0,(2) = 2  supra 9
0,(3)= 3 supra 9= 1 supra 3 
2/9 + 1/3 la puterea a 2= 2/9+ 1/9=3/9=1/3