Question

Sendo A = (13/7)², B = (2,111...)2, C√5,444... = , D = 1,08181... e E = π , então o maior desses números é
a) A.

b) B.

c) C.

d) D.

e) E.

Answer 1

A= (13/7)² = 13²/7² = 169/49 = 3. 22/49 ≈ 3,44898 = 3,45
B= (2,111...).2 = 4.222...= 4,22
C= √5,444 ≈ √1361/√250 = √1361/5√10 = √13610/50 ≈2.33324 = 2,33
D= 1,08181... = 1,08
E= π = 3,14...

Resposta: B

Answer 2

A = (13/7)² ==> 3,448
 
B = (2,111...)2 = ( 21-2)2 ==> (19)2 ==> 4,45
                              9                 9
C√5,444... = 2,33

D = 1,08181

E = π ==> 3,14  letra B