Chứng tỏ :
\(1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{199}-\frac{1}{200}=\frac{1}{101}+\frac{1}{102}+...+\frac{1}{200}\)
\(\text{Chứng tỏ:}\)
\(1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+.....+\frac{1}{199}-\frac{1}{200}=\frac{1}{101}+\frac{1}{102}+.....+\frac{1}{200}\)
Chứng tỏ:
\(\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+...+\frac{1}{199}+\frac{1}{200}\) < 1
Chứng tỏ rằng:
\(\frac{1}{101}+\frac{1}{102}+...+\frac{1}{199}+\frac{1}{200}< 1\)
Giúp mình ý!!!Mình cho like!!
CM \(1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\frac{1}{5}-\frac{1}{6}+....+\frac{1}{199}-\frac{1}{200}=\frac{1}{101}+\frac{1}{102}+....+\frac{1}{200}\)
chứng minh rằng
\(A=\frac{1}{101}+\frac{1}{102}+....+\frac{1}{199}+\frac{1}{200}< 1\)1
\(A=\frac{1}{101}+\frac{1}{102}+........+\frac{1}{199}+\frac{1}{200}\)
a)A<1
b)a<\(\frac{5}{6}\)
Cho \(A=\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+\frac{1}{104}+......+\frac{1}{199}+\frac{1}{200}\)
Chứng tỏ \(A
Chứng minh:
A = \(\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+.....+\frac{1}{199}+\frac{1}{200}>\frac{7}{12}\)