1/100-1/100.99-1/99.98-1/98.97-...-1/3.2-1/2.1
=-(-1/100+1/100.99+1/99.98+1/98.97+...+1/3.2+1/2.1)
=-(-1/100+1/100-1/99+1/99-1/98+1/98-1/97+...+1/3-1/2+1/2-1)
=-(-1)=1
tính nhanh : \(C=\frac{1}{100}-\frac{1}{100.99}\frac{1}{99.98}-\frac{1}{98.97}-...........-\frac{1}{3.2}-\frac{1}{2.1}\)
Cho\(C=\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-...-\frac{1}{3.2}-\frac{1}{2.1}\). Tính 50.C
\(C=\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-...-\frac{1}{3.2}-\frac{1}{2.1}=?\)
C = \(\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-....-\frac{1}{3.2}-\frac{1}{2.1}.\)
Tính C=\(\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-....-\frac{1}{3.2}-\frac{1}{2.1}\)
Cho \(c=\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-....-\frac{1}{3.2}-\frac{1}{2.1}\) .
Khi đó 50C =
Cho \(C=\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-...-\frac{1}{3.2}-\frac{1}{2.1}\).
Khi đó 5C=______
\(A=\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-...-\frac{1}{3.2}-\frac{1}{2.1}\)
Tính nhanh
\(C=\frac{1}{100}-\frac{1}{100.99}-\frac{1}{99.98}-\frac{1}{98.97}-...-\frac{1}{3.2}-\frac{1}{2.1}\)
