Question

 Tử số   :               2009 x 2008 - 1

Mẫu số  :            2007 x 2009 + 2008

Answer 1

ket qua =1

tik cho minh nha

Answer 2

\(=\frac{\left(2008+1\right)\times2008-1}{2007\times\left(2008+1\right)+2008}=\frac{2008\times2008+2008-1}{2007\times2008+2007+2008}=\frac{2008\times2008+2007}{2007\times2008+4015}\)

Answer 3

\(=\frac{\left(2007+1\right)\times2008+2007}{2007\times2008+4015}=\frac{2007\times2008+2008+2007}{2007\times2008+4015}=\frac{2007\times2008+4015}{2007\times2008+4015}\)