Đề bài
= \(\frac{1}{2}\times\frac{2}{3}\times\frac{3}{4}\times\frac{4}{5}\times...\times\frac{2002}{2003}\times\frac{2003}{2004}\)
= \(1\times2\times3\times4\times...\times2002\times2003/2\times3\times4\times5\times...2003\times2004\)
= \(\frac{1}{2004}\)
Đề bài
= 1/2 x 2/3 x 3/4 x 4/5 x .... x 2002/2003 x 2003/2004
= 1 x 2 x 3 x 4 x ...x 2002 x 2003 / 2 x 3 x 4 x 5 x .... x 2003 x 2004
= 1/2004
K nha