1)\(A=\frac{1}{2}-\frac{3}{4}+\frac{5}{6}-\frac{7}{8}+...+\frac{197}{198}-\frac{199}{200}\) \(B=\frac{1}{51}+\frac{1}{52}+...+\frac{1}{100}\)tính B:A2)\(A=1+\frac{1}{2}+\frac{1}{3}+..+\frac{1}{4026}\) \(B=1+\frac{1}{3}+\frac{1}{5}+...+\frac{1}{4025}\)So...
Đọc tiếp
1)\(A=\frac{1}{2}-\frac{3}{4}+\frac{5}{6}-\frac{7}{8}+...+\frac{197}{198}-\frac{199}{200}\)
\(B=\frac{1}{51}+\frac{1}{52}+...+\frac{1}{100}\)
tính B:A
2)\(A=1+\frac{1}{2}+\frac{1}{3}+..+\frac{1}{4026}\)
\(B=1+\frac{1}{3}+\frac{1}{5}+...+\frac{1}{4025}\)
So sánh \(\frac{A}{B}và1\frac{2013}{2014}\)
gửi lắm thế m