Tính tổng S= 2015 + 2015/1+2 + 2015/1+2+3 + ... + 2015/1+2+3+...+2016
Tính tổng S=2015+2015/1+2+2015/1+2+3+..........+2015/1+2+3+........+2016
Tính tổng S=1+2+2^2+2^3+.....+2^2015/1-2^2016
S=1+2+2.2+2.2.2+.....+2 mũ 2015/1-2 mũ 2016
Tính tổng S
Tính tổng S = \(2015+\frac{2015}{1+2}+\frac{2015}{1+2+3}+...+\frac{2015}{1+2+3+...+2016}\)
tìm s
Tính S = 1/2(1+2) + 1/3(1+2+3)+...+ 1/2015(1+2+...+2014+2015) + 1/2016(1+2+...+2015+2016
Tính tổng:
\(S=2015+\frac{2015}{1+2}+\frac{2015}{1+2+3}+....+\frac{2015}{1+2+3+...+2016}\)
Tính S = 1/2(1+2) + 1/3(1+2+3)+...+ 1/2015(1+2+...+2014+2015) + 1/2016(1+2+...+2015+2016)
Tính tổng: S= 2016+\(\frac{2016}{1+2}+\frac{2016}{1+2+3}+...+\frac{2016}{1+2+3+...+2015}\)
giúp mình nha