Các câu hỏi tương tự
CMR: \(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}>2\)
CMR: \(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}< 2\)
Giúp nha cho 3 like
CMR: \(\frac{1}{2}+\frac{1}{3}+...+\frac{1}{63}>2\)
CMR: \(3<1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}<6\)
CMR: B=1+\(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}\)< 6
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A=1+\(\frac{1}{2}\)+\(\frac{1}{3}\) +...+\(\frac{1}{63}\)
CMR A<6
B=\(1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}< 6\)
C=\(1+\frac{1}{2^2}+\frac{1}{3^2}+\frac{1}{4^2}+...+\frac{1}{100^2}< 2\)
Afrac{1}{2}+frac{1}{3}+frac{1}{4}+...+frac{1}{63}2 C1+frac{1}{2}+frac{1}{3}+frac{1}{4}+...+frac{1}{63} 6B1+frac{1}{2^2}+frac{1}{3^2}+frac{1}{4^2}+...+frac{1}{100^2} 2 Dfrac{1}{2}.frac{3}{4}.frac{5}{6}....frac{9999}{10000} frac{1}{100}Mọi người giúp mik nhé, mik đang ôn thi nên cần gấp!
Đọc tiếp
\(A=\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}>2\) \(C=1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{63}< 6\)
\(B=1+\frac{1}{2^2}+\frac{1}{3^2}+\frac{1}{4^2}+...+\frac{1}{100^2}< 2\) \(D=\frac{1}{2}.\frac{3}{4}.\frac{5}{6}....\frac{9999}{10000}< \frac{1}{100}\)
Mọi người giúp mik nhé, mik đang ôn thi nên cần gấp!
a) CMR: \(\frac{1}{2^2}+\frac{1}{3^2}+\frac{1}{4^2}+...+\frac{1}{n^2}< \frac{3}{4}\)
b) CMR: \(\frac{1}{3^2}+\frac{1}{5^2}+\frac{1}{7^2}+...+\frac{1}{\left(2n+1\right)^2}< \frac{1}{4}\)