Cho S=\(\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)
CMR:1<S<2
a) Cho \(s=\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)
CMR 1<s<2, từ đó suy ra s ko phải stn
b) Cho \(s=\frac{1}{31}+\frac{1}{32}+\frac{1}{33}+....+\frac{1}{60}\)
CMR 3/5< s < 4/5
Cho S = \(\frac{3}{10}\)+\(\frac{3}{11}\)+\(\frac{3}{12}\)+\(\frac{3}{13}\)+\(\frac{3}{14}\)
CMR 1 < S < 2
1) Cho \(S=\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)
Chứng minh rằng : S > 1
Cho\(S=\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)
Chứng minh 1<S<2
Cho S\(\text{= }\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)Chứng minh rằng : 1< S < 2
Cho \(S=\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)
Chứng mình rằng 1 < S < 2
Cho \(S+\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)( S = nha bn mik vt sai)
CMR 1< S < 2
Từ đó suy ra \(S\notin N\)
Ai nhanh mink tick cho (nhớ là p đ nhé)
iuu
Bài 1: Tìm (x;y), biết :
\(\frac{1}{x}+\frac{y}{6}=\frac{1}{2}\)
Bài 2: Cho S=\(\frac{3}{10}+\frac{3}{11}+\frac{3}{12}+\frac{3}{13}+\frac{3}{14}\)
CMR: 1<S<2
Giup tớ với nhé. Thanks nhiều.(^ . ^)