A = \(\frac{2016}{2017}+\frac{2017}{2018}+\frac{2018}{2019}\)và B = \(\frac{2016+2017+2018}{2017+2018+2019}\)

So sánh 2 biểu thức:

M = \(\frac{2016}{2017}\)+\(\frac{2017}{2018}\)+\(\frac{2018}{2019}\)

N = \(\frac{2016+2017+2018}{2017+2018+2019}\)

So sánh: \(\frac{2017}{2018+2019}\)+ \(\frac{2018}{2017+2019}\)+ \(\frac{2019}{2017+2018}\)và 1

Bạn nào làm đúng mình tik cho

Cho x, y, z thỏa mãn:

\(\frac{x}{2017}+\frac{y}{2018}+\frac{z}{2019}=1\)

\(\frac{2017}{x}+\frac{2018}{y}+\frac{2019}{z}=0\)

CMR:\(\frac{x^2}{2017^2}+\frac{y^2}{2018^2}+\frac{z^2}{2019^2}=1\)

Cho \(A=1-\frac{2017}{2019}+\left(\frac{2017}{2019}\right)^2-\left(\frac{2017}{2019}\right)^3+...+\left(\frac{2017}{2019}\right)^{2018}\)

Chứng minh A không là số nguyên.

So sanh :\(\frac{2017}{2018}+\frac{2018}{2019}va\frac{2015}{2016}+\frac{2016}{2017}\)

so sánh

A = \(\frac{2017}{2018}\) +    \(\frac{2018}{2019}\) và B=\(\frac{2017+2018}{2018+2019}\)

So sánh \(\frac{2017}{2018}+\frac{2018}{2019}và\frac{2015}{2016}+\frac{2016}{2017}\)

\(\frac{1}{2017}\)_\(\frac{1}{2018}\)+\(\frac{1}{2019}\)=\(\frac{1}{2018}\)_\(\frac{1}{2017-2019}\)