Question

A = 2 mũ 2017 + 2 / 2 mũ 2017 +3 và B = 2 mũ 2017 + 1 / 2 mũ 2017 + 2

     so sánh

Answer 1

Ta có: \(A=\frac{2^{2017}+2}{2^{2017}+3}=1-\frac{1}{2^{2017}+3}\)

        \(B=\frac{2^{2017}+1}{2^{2017}+2}=1-\frac{1}{2^{2017}+2}\)

Vì \(\frac{1}{2^{2017}+3}< \frac{1}{2^{2017}+2}\) nên \(1-\frac{1}{2^{2017}+3}>1-\frac{1}{2^{2017}+2}\)

hay A > B

Answer 2

A>B bạn nhé