2023-1/2.6-1/4.9-1/6.12-...-1/36.57-1/38.60
\(S=\frac{101}{120}+\frac{1}{2.6}+\frac{1}{4.9}+\frac{1}{6.12}+...+\frac{1}{36.57}\)
\(D=\frac{101}{120}+\frac{1}{2.6}+\frac{1}{4.9}+\frac{1}{6.12}+.....+\frac{1}{58.60}\)
Tính tổng
S=101/120+1/2x6+1/4x9+1/6x12+...+1/36x57+1/38x60
Tính tổng
S=101/120+1/2x6+1/4x9+1/6x12+...1/36x57+1/38x60
Tính tổng S=1/1.3 + 1/2.4 + 1/3.5+....+1/4.9+ 1/8.10
Tính tổng S= 1/1.3+1/2.4+1/3.5+...+1/4.9+1/8.10
Tìm x
2/2x3+2/3x4+...+2/x(x+1)=2007/2009
Tính tổng
S=101/120+1/2x6+1/4x9+1/6x12+...1/36x57+1/38x60
Tính tổng S=1/1.3 + 1/2.4 +1/3.5+....+1/4.9+ 1/8.19