#)Giải :

\(Q=2+\frac{2016}{2017+2018+2019}+\frac{2017}{2017+2018+2019}+\frac{2018}{2017+2018+2019}\)

Ta thấy : \(2>\frac{2016}{2017};2>\frac{2017}{2018};2>\frac{2018}{2019}\left(1\right)\)

\(\frac{2016}{2017+2018+2019}< \frac{2016}{2017}\left(2\right)\)

\(\frac{2017}{2017+2018+2019}< \frac{2017}{2018}\left(3\right)\)

\(\frac{2018}{2017+2018+2019}< \frac{2018}{2019}\left(4\right)\)

Từ (1) (2) (3) (4) \(\Rightarrow P>Q\)

minh nghi ban dang chep sai de bai 

the de bai cua minh thi giai nhu sau

A=1/2015.2016+1/2016.2017+......+1/2029.2030

A=1/2015-1/2016+1/2016-1/2017+.....+1/2029-1/2030

A=1/2015-1/2030=3/818090

vì  2016/ 2017<1 ,

2017/ 2018 <1

2018 /2019<1

=>  2016/ 2017 + 2017/ 2018 + 2018 / 2019<1+1+1=3

vậy A = 2016/ 2017 + 2017/ 2018 + 2018 / 2019 < 3

kết mk đi và tk nha mk kết rồi đấy

Lưu ý: Bạn không được đăng các câu hỏi linh tinh.

bằng nhau

a=b

https://olm.vn/hoi-dap/tim-kiem?id=229743666726&id_subject=1&q=++++++gi%C3%BAp++m%C3%ACnh+v%E1%BB%9Bi+m%C3%ACnh+ko+bi%E1%BA%BFt+l%C3%A0mm+++++++so+s%C3%A1nh+2016/2017+2017/2018+2018/2016+v%E1%BB%9Bi+3+hlep+me+!!!!!!!!!++++

Bạn tham khảo nha

Học tốt!!!

a) \(\frac{1995}{1997}\)và \(\frac{1995}{1996}\)

Ta có : \(\frac{1995}{1996}=\frac{1995\times2}{1996\times2}=\frac{3990}{3992}\)

\(1-\frac{1995}{1997}=\frac{2}{1997};1-\frac{3990}{3992}=\frac{2}{3992}\)

Vì \(\frac{2}{1997}>\frac{2}{3992}\)nên \(\frac{1995}{1997}< \frac{3990}{3992}\)hay \(\frac{1995}{1997}< \frac{1995}{1996}\).

b) \(\frac{2016}{2017}\)và \(\frac{2017}{2018}\)

Ta có : \(1-\frac{2016}{2017}=\frac{1}{2017};1-\frac{2017}{2018}=\frac{1}{2018}\)

Vì \(\frac{1}{2017}>\frac{1}{2018}\)nên \(\frac{2016}{2017}< \frac{2017}{2018}\).

c) \(\frac{2018}{2019}\)và \(\frac{2017}{2016}\).

Vì \(\frac{2018}{2019}< 1;1< \frac{2017}{2016}\)nên \(\frac{2018}{2019}< \frac{2017}{2016}\).

~ HOK TỐT ~

a)\(\frac{1995}{1997}\)<   \(\frac{1995}{1996}\)

b)\(\frac{2016}{2017}\)<    \(\frac{2017}{2018}\)

c)\(\frac{2018}{2019}\)<     \(\frac{2017}{2016}\)

2015 x 2016 + 2017 - 2018

= 4062240 + 2017 - 2018

= 4064257 - 2018

= 4062239

4062239

tik mk nha!