Tính nhanh:\(\frac{1}{100,00\%}+\frac{2}{99,99\%}+...+\frac{9999}{0,02\%}+\frac{10000}{0,01\%}\)
So sánh \(A\) và \(B\),biết rằng:
\(A=\frac{1}{100,00\%}+\frac{99,99\%}{2}+...+\frac{9999}{0,02\%}+\frac{0,01\%}{10000}\)
\(B=\frac{100,00}{1\%}+\frac{2\%}{99,99}+...+\frac{0,02}{9999\%}+\frac{10000\%}{0,01}\)
Hãy so sánh \(A\)và \(B\),biết rằng:
\(A=\frac{0,01\%}{100,00\%}+\frac{0,02\%}{99,99\%}+...+\frac{99,99\%}{0,02\%}+\frac{100,00\%}{0,01\%}\)
\(B=\frac{0,01}{100,00}+\frac{0,02}{99,99}+...+\frac{99,99}{0,02}+\frac{100,00}{0,01}\)
Tính nhanh : \(\frac{10000}{10001}-\frac{9999}{10000}+\frac{1}{9999}-\frac{1}{10000}+...+\frac{3}{4}-\frac{2}{3}+\frac{1}{2}-\frac{1}{3}\)
Tính nhanh :\(\frac{1}{10000}+\frac{13}{10000}+\frac{25}{10000}+\frac{37}{10000}+.....+\frac{121}{10000}+\frac{133}{10000}\)
tính nhanh\(\left(\frac{1}{2}-\frac{1}{3}-\frac{1}{6}\right)x\left(\frac{1}{99}+\frac{12}{999}+\frac{123}{9999}\right)\)
Tính nhanh: \(A=\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}+...+\frac{1}{9999}\)
Tính nhanh: \(A=\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}+...+\frac{1}{9999}\)
1/Tính nhanh:
A= \(\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}+...+\frac{1}{9999}\)
2/Tính tổng:
A=\(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+\frac{1}{30}+\frac{1}{42}\)