Tính nhanh:\(\frac{1}{100,00\%}+\frac{2}{99,99\%}+...+\frac{9999}{0,02\%}+\frac{10000}{0,01\%}\)
Tính nhanh: \(\frac{100,00\%}{1}+\frac{99,99\%}{2}+...+\frac{0,02\%}{9999}+\frac{0,01\%}{10000}\)
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 bằng cách hợp lí:
a/ \(\left(1+\frac{1}{3}\right)x\left(1+\frac{1}{8}\right)x\left(1+\frac{1}{15}\right)x...x\left(1+\frac{1}{9999}\right)\)
b/ \(\left(1-\frac{1}{4}\right)x\left(1-\frac{1}{9}\right)x\left(1-\frac{1}{16}\right)x...x\left(1-\frac{1}{10000}\right)\)
Nhớ giải giúp mình nhé!
Không Tính Hãy So Sánh A và B
A=\(\frac{1}{3}\)B=\(\frac{33,4\times33,4+0,02}{33,5\times33,3+0,3}\)
Bài 1:
\(\frac{1}{10000}\)+\(\frac{13}{10000}\)+\(\frac{25}{10000}\)\(\frac{37}{10000}\)+...........+\(\frac{121}{10000}\)\(\frac{133}{10000}\)
Bài 2:
\(a+a+a+\frac{1}{2}x\)\(\frac{2}{5}+a+\frac{8}{10}+a=136\)
Tính nhanh :\(\frac{1}{10000}+\frac{13}{10000}+\frac{25}{10000}+\frac{37}{10000}+.....+\frac{121}{10000}+\frac{133}{10000}\)
A = \(\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}+.....+\frac{1}{9999}\)
A = ?