\(\Rightarrow A=\frac{\left(2011^{2011}-3\right)+3}{2011^{2011}-3}=1+\frac{3}{2011^{2011}-3}\)
\(\Rightarrow B=\frac{2011^{2011}-1+3}{2011^{2011}-1}=1+\frac{3}{2011^{2011}-1}\)
Vì 20112011 - 3 < 20112011 - 1 =>\(\frac{3}{2011^{2011}-3}>\frac{3}{2011^{2011}-1}\)
\(\Rightarrow1+\frac{3}{2011^{2011}-3}>1+\frac{3}{2011^{2011}-1}\) hay A > B