Tính :A= [(2018/1)+(2017/2)+(2016/3)+(2015/4)+...+(4/2015)+(3/2016)+(2/2017)+(1/2018)]/[(2019/2)+(2019/3)+(2019/4)+(2019/5)+...+(2019/2015)+(2019/2016)+(2019/2017)+(2019/2018)+(2019/2019)]

Tính :A= [(2018/1)+(2017/2)+(2016/3)+(2015/4)+...+(4/2015)+(3/2016)+(2/2017)+(1/2018)]/[(2019/1)+(2019/2)+(2019/3)+(2019/4)+...+(2019/2015)+(2019/2016)+(2019/2017)+(2019/2018)+(2019/2019)]

So sánh (26^2018+3^2018)^2019 và (26^2019+3^2019)2018

Giải nhanh mình tick cho nha

TÍNH:

\(\frac{2^{2018}}{2^{2018}+3^{2019}}+\frac{3^{2019}}{3^{2019}+5^{2020}}+\frac{5^{2020}}{5^{2020}+2^{2018}}\)

Đề bài: So sánh

1, \(\dfrac{2017}{2018}+\dfrac{2018}{2019}+\dfrac{2019}{2020}với\) 3

2, \(\dfrac{2017}{2018}+\dfrac{2018}{2019}với\dfrac{2017+2018}{2018+2019}\)

So sánh :\(\left(26^{2018}+3^{2018}\right)^{2019}\)và \(\left(26^{2019}+3^{2019}\right)^{2018}\)

a.1/3 x 2019/2020

b. 2017 x 2018/2019 x 2019/2018

Tính giá trị biểu thức \(A=\frac{2^{2018}}{2^{2018}+3^{2019}}+\frac{3^{2019}}{3^{2019}+5^{2000}}+\frac{5^{2000}}{5^{2000}+2^{2018}}\)

tính: 1/(2+√2) + 1/(3√2+2√3) +....+ 1(2019√2018+2018√(2019)