Răspuns :
Răspuns:
[tex] \frac{2004(2004 + 1)}{2} \times \frac{1}{(2004 + 1)2004} = \frac{1}{2} [/tex]
[tex] \frac{1}{2} = \frac{2x - 1}{x} \\ x = 4x - 2 \\ 3x = 2 \\ x = \frac{2}{3} [/tex]
Răspuns:
[tex] \frac{2004(2004 + 1)}{2} \times \frac{1}{(2004 + 1)2004} = \frac{1}{2} [/tex]
[tex] \frac{1}{2} = \frac{2x - 1}{x} \\ x = 4x - 2 \\ 3x = 2 \\ x = \frac{2}{3} [/tex]