Các câu hỏi tương tự
Cho A=\(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{50}\)
Chung minh rang A khong co gia tri la mot so tu nhien
Mk dag can gap
cmr: \(1+\frac{1}{2^2}+\frac{1}{3^2}..........+\frac{1}{100^2}\)ko phai la so tu nhien
cho a la so tu nhien khac khong . hay so sanh
\(\frac{a}{a+1}+\frac{a+1}{a}\) voi 2
tim so tu nhien a,b,c sao cho \(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}=\frac{4}{5}\)
tim cac so tu nhien a,b,c sao cho \(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}=\frac{4}{5}\)
Tim so tu nhien n de phan so A=\(\frac{2n+1}{n-3}+\frac{3n-5}{n-3}-\frac{4n-5}{n-3}\)
a/Tim n de A nhan gia tri nguyen
b/Tim n de A la phan so toi gian
Cho n thuoc N*, chung to rang \(\frac{1}{1^2}\)+ \(\frac{1}{2^2}\)+ \(\frac{1}{3^2}\)+....+ \(\frac{1}{n^2}\)khong phai la mot so tu nhien
Help me!!!!!!!!!!
a,tinh tong cua cac so nguyen x thoa man-2<x-2014 < 1
b,chung minh rang:\(\frac{10^{2014}+8}{72}\)la mot so tu nhien
a,tinh tong cua cac so nguyen x thoa man -2<x-2014 < 1
b,chung minh rang\(\frac{10^{2014}+8}{72}\)la mot so tu nhien