Respuestas

2013-05-13T11:14:01+02:00

A = 4 + 1 / (3 + 1/3) = 4 + 1 / (10/3) = 4 + (3 / 10) = 43 / 10

 

B = 4 + 1 /(1 + 1/2) = 4 + 1 / (1 + (1  / 3/2) = 4 + 1 / (1 + 2/3) = 4 + 1 / (5/3) = 4 + 3/5 = 23 / 5

 

B - A = 23 / 5 - 43 / 10 = (46 - 43) / 10 = 3 / 10.

Por tanto la solución correcta es la c