a. [tex] \frac{3}{2} * \frac{4}{3} * \frac{5}{4} *...* \frac{2011}{2010}* \frac{2012}{2011} [/tex]
simplifici nr: 3,4,5......2011
ramane [tex] \frac{2012}{2}=1006[/tex]
b. [tex] \frac{1}{2}* \frac{2}{3} \frac{3}{4} *...* \frac{2009}{2010} * \frac{2010}{2011} [/tex]
simplifici nr: 2,3,4.....2010
ramane [tex] \frac{1}{2011} [/tex]
coronita? Multumesc