Question

a= 2009 mũ 10 +2/2009 mũ 11 + 2    b= 2009 mũ 12 + 2 / 2009 mũ 12 + 2 so sánh ntn

Answer 1

ta có: \(A=\frac{2009^{10}+2}{2009^{11}+2}< 1\)

\(B=\frac{2009^{12}+2}{2009^{12}+2}=1\)

\(\Rightarrow A< B\)

Answer 2

\(A=\frac{2009^{10}+1}{2009^{11}+2}\)            \(B=\frac{2009^{12}+2}{2009^{12}+2}\)

Ta có A< 1 mà B=1 => A<B