Question

So sánh 

2003/2004 + 2004/2005 + 2005/2003 với 3

Answer 1

Đề đúng :  So sánh :   \(\frac{2003}{2004}+\frac{2004}{2005}+\frac{2005}{2006}\)với 3 

Ta có : 

\(\frac{2003}{2004}< \frac{2004}{2004}=1\)

\(\frac{2004}{2005}< \frac{2005}{2005}=1\)

\(\frac{2005}{2006}< \frac{2006}{2006}=1\)

\(\Rightarrow\frac{2003}{2004}+\frac{2004}{2005}+\frac{2005}{2006}< 1+1+1\)

\(\Rightarrow\frac{2003}{2004}+\frac{2004}{2005}+\frac{2005}{2003}< 3\)

Chúc bạn học tốt !!!