Question

(PUC-RJ) O valor de √1,777.../ √0,111... é:

a) 4,444...

b)4

c)4,777...

d)3

e)4/3

Answer 1

√1,777.../ √0,111...
1,777/0,111
1,777=1+7/9=16/9=4/3
0,111=1/9=1/3

4/3 / 1/3 = 4/3.3/1=12/3=4.

resposta final 4.