\(S=3+\frac{3}{2}+\frac{3}{2^2}+...+\frac{3}{2^9}\)
\(2S=6+3+\frac{3}{2}+...+\frac{3}{2^8}\)
\(2S-S=\left(6+3+\frac{3}{2}+...+\frac{3}{2^8}\right)-\left(3+\frac{3}{2}+\frac{3}{2^2}+...+\frac{3}{2^9}\right)\)
\(S=6-\frac{3}{2^9}\)
\(S=6-\frac{3}{512}\)
\(S=\frac{3069}{512}\)
Vậy \(S=\frac{3069}{512}\)
Tính tổng
S=\(3+\frac{3}{2}+\frac{3}{2^2}+.....+\frac{3}{2^9}\)
Tính tổng
\(S=3+\frac{3}{2}+\frac{3}{2^2}+...+\frac{3}{2^9}\)
Tính tổng:
S=3+\(\frac{3}{2}+\frac{3}{2^2}+\frac{3}{2^3}+...+\frac{3}{2^9}\)
Bài 6: Tính tổng
S=\(3+\frac{3}{2}+\frac{3}{2^2}+...\frac{3}{2^9}\)
Tính tổng: S = 3 + \(\frac{3}{2}+\frac{3}{2^2}+...+\frac{3}{2^9}\)
Tính tổng: \(S=3+\frac{3}{2}+\frac{3}{2^2}+........+\frac{3}{2^9}\)
Tính tổng
\(S=3+\frac{3}{2}+\frac{3}{2^2}+...+\frac{3}{2^9}\)
Tính tổng S = \(3+\frac{3}{2}+\frac{3}{2^2}+\frac{3}{2^3}+...+\frac{3}{2^9}\)
Gấp, giải giúp, tick nhanh
Tính tổng: S = \(3+\frac{3}{2}+\frac{3}{2^2}+...+\frac{3}{2^9}\)