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Cho A = 1/101+1/102+1/103+...+1/130. CMR: 1/4 <A< 91/330
S=1/101+1/102+1/103+...+1/130
CMR 1/4<S<91/330
Cho A= 1/101+1/102+...+1/130. CMR: 1/4<A<91/330
Cho s=1/101+1/102+1/103+....+1/130 chứng minh 1/4<s<91/330
Cho biết S= 1/101+1/102+1/103+...+1/130. Chứng minh rằng 1/4< S <91/330
Cho biết \(S=\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+....+\frac{1}{129}+\frac{1}{130}\)
\(CMR:\frac{1}{4}< S< \frac{91}{330}\)
Cho S=1\101+1\102+...+1\130. CMR 1\4<S<91\330
S= \(\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+....+\frac{1}{130}.Chứngminhrằng\frac{1}{4}< S< \frac{91}{330}\)
Cho \(S=\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+...+\frac{1}{130}\). Chứng minh: 1/4 < S < 91/330