Răspuns:
Explicație pas cu pas:
2^2005 + 2^2005 = 2*2^2005 = 2^2006
2^2004 + 2^2004 = 2*2^2004 = 2^2005
Primul raport devine 2^2006/2^2005 = 2
______________
1 intreg si 3/4 = 7/4
7/4*1/5 = 7/20
(4 intregi si 5/6)^0 = 1
7/20 +1 = 7/20 + 20/20 = 27/20
2,7 = 27/10
______________
Proportia devine
2 = 27/20 : 27x/10
2 = 27/20 * 10/27x
2 = 1/2x
4x = 1
x = 1/4
