Các câu hỏi tương tự
Tính
A=\(\frac{1+\frac{1}{3}+\frac{1}{5}+...+\frac{1}{97}+\frac{1}{99}}{\frac{1}{1\cdot99}+\frac{1}{3\cdot97}+\frac{1}{5\cdot95}+...+\frac{1}{97\cdot3}+\frac{1}{99\cdot1}}\)
\(\frac{1+\frac{1}{3}+\frac{1}{5}+...+\frac{1}{97}+\frac{1}{99}}{\frac{1}{1\cdot99}+\frac{1}{3\cdot97}+\frac{1}{5\cdot99}+...+\frac{1}{97\cdot3}+\frac{1}{99\cdot1}}\)
\(\frac{1}{99\cdot97}-\frac{1}{97\cdot95}-\frac{1}{95\cdot93}-....-\frac{1}{5\cdot3}-\frac{1}{3\cdot1}\)
Tính\(\frac{1}{99\cdot97}-\frac{1}{97\cdot95}-...-\frac{1}{5\cdot3}-\frac{1}{3\cdot1}\)
Tính giá trị của biểu thức \(\frac{1}{99\cdot97}-\frac{1}{97\cdot95}-\frac{1}{95\cdot93}-\frac{1}{5\cdot3}-\frac{1}{3\cdot1}\)
\(\frac{1}{99\cdot97}-\frac{1}{97\cdot95}-................-\frac{1}{3\cdot1}\)
Tính D = \(\frac{1}{99\cdot97}-\frac{1}{97\cdot95}-\frac{1}{95\cdot93}-....-\frac{1}{3\cdot1}\)
Tính :
\(A=\frac{1\cdot98+2\cdot97+3\cdot96+......+98\cdot1}{1\cdot2+2\cdot3+3\cdot4+......+98\cdot99}\)
\(B=\frac{100-\left(1+\frac{1}{2}+\frac{1}{3}+..........+\frac{1}{100}\right)}{\frac{1}{2}+\frac{2}{3}+\frac{3}{4}+.........+\frac{99}{100}}\)
Giúp mình nhé mình đang cần gấp
\(\frac{1\cdot98+2\cdot97+3\cdot96+...+96\cdot3+97\cdot2+98\cdot1}{1\cdot2+2\cdot3+3\cdot4+...+96\cdot97+97\cdot98+98\cdot99}\)