Câu trả lời:

F=4/2.4+4/4.6+...+4/2008.2010

  =2(2/2.4+2/4.6+....+2/2008.2010)

=2(1/2-1/4+1/4-1/6+....+1/2008-1/2010)

=2(1/2-1/2010)

=2.\(\frac{502}{1005}\)

=\(\frac{8032}{1005}\)