a)10000111

b)111101

a: 10000111

b: 111101

a)10000111

b)111101

Bg

Ta có: \(M=\frac{-2020}{55555^{66666}}\)và \(N=\frac{2020}{-66666^{55555}.11111^{11111}}\)

Xét \(M=\frac{-2020}{55555^{66666}}\):

=> \(M=\frac{-2020}{\left(11111.5\right)^{11111.6}}\)

=> \(M=\frac{-2020}{11111^{11111.6}.5^{11111.6}}\)

=> \(M=\frac{-2020}{11111^{11111.6}.5^{6^{11111}}}\)

=> \(M=\frac{-2020}{11111^{11111.6}.15625^{11111}}\)

Xét \(N=\frac{2020}{-66666^{55555}.11111^{11111}}\):

=> \(N=\frac{-2020}{\left(11111.6\right)^{11111.5}.11111^{11111}}\)

=> \(N=\frac{-2020}{11111^{11111.5}.6^{11111.5}.11111^{11111}}\)

=> \(N=\frac{-2020}{11111^{11111.5}.11111^{11111}.6^{11111.5}}\)

=> \(N=\frac{-2020}{11111^{11111.5+}^{11111}.6^{11111.5}}\)

=> \(N=\frac{-2020}{11111^{11111.6}.6^{11111.5}}\)

=> \(N=\frac{-2020}{11111^{11111.6}.7776^{11111}}\)

Vì 7776¹¹¹¹¹ < 15625¹¹¹¹¹ nên \(M=\frac{-2020}{11111^{11111.6}.15625^{11111}}\)> \(N=\frac{-2020}{11111^{11111.6}.7776^{11111}}\)

Vậy M > N

Cảm ơn a ạ!

tôi ko qui đồng đâu đấy nha 

13/27>16/33

k mình nha

Sai đề rồi  ghf diepio

de la the do

vÌ  - 8 < - 7

\(\Rightarrow\frac{-8}{9}< \frac{-7}{9}\)

a. \(\frac{-8}{9}< \frac{-7}{9}\)

Vì (-8) < (-7)

a. \(\frac{-8}{9}\)và \(\frac{-7}{9}\)

Vì -8<-7 nên \(\frac{-8}{9}\)<\(\frac{-7}{9}\)

Vậy \(\frac{-8}{9}\)<\(\frac{-7}{9}\)

CHÚC BẠN HỌC TỐT

Ta có: 179/197 < 1 (Vì 179 < 197)

971/917 > 1 (Vì 971 > 917)

Vì 179/197 < 1 < 971/917 

Nên 179/197 < 971/917 

Chúc Bạn Thi Tốt

179/197 < 971/917

Ta có:

\(\frac{2011}{2012}=1-\frac{1}{2012}\)

\(\frac{2012}{2013}=1-\frac{1}{2013}\)

\(\frac{2013}{2014}=1-\frac{1}{2014}\)

Do \(\frac{1}{2012}>\frac{1}{2013}>\frac{1}{2014}\)=> \(-\frac{1}{2012}< -\frac{1}{2013}< -\frac{1}{2014}\)

=> \(1-\frac{1}{2012}< 1-\frac{1}{2013}< 1-\frac{1}{2014}\)

=> \(\frac{2011}{2012}< \frac{2012}{2013}< \frac{2013}{2014}\)

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

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

Vì \(\frac{1}{2019}< \frac{1}{2018}\)

\(\Leftrightarrow\frac{-2018}{2019}+1< \frac{-2017}{2018}+1\)

\(\Leftrightarrow\frac{-2018}{2019}< \frac{-2017}{2018}\)

HOK TOT

thanks bạn

Ta thấy \(\frac{2012.2013}{2012.2013+1}< 1\) ; \(\frac{2013}{2012}>1\)

\(\Rightarrow\frac{2012.2013}{2012.2013+1}< \frac{2013}{2012}\)

Ta thấy phân số \(\frac{2012\cdot2013}{2012\cdot2013+1}\)có tử số nhỏ hơn mẫu số  => Phân số này < 1 

Mà phân số \(\frac{2013}{2012}\)> 1 => Phân số \(\frac{2012\cdot2013}{2012\cdot2013+1}\)< \(\frac{2013}{2012}\)

Ta có : 

\(\frac{2012.2013}{2012.2013+1}< \frac{2012.2013+1}{2012.2013+1}=1\left(1\right)\)

\(\frac{2013}{2012}>\frac{2012}{2012}=1\left(2\right)\)

Từ \(\left(1\right);\left(2\right)\)

\(\Rightarrow\frac{2012.2013}{2012.2013+1}< \frac{2013}{2012}\)

Ta có -8/-13 = 8/13

Vì 5 < 8 suy ra 5/13 <  8/13

hay 5/13 < -8/-13

Vậy 5/13 < -8/-13

Ta có:\(\frac{-8}{-13}\)=\(\frac{8}{13}\)

Vì \(\frac{5}{13}\)<\(\frac{8}{13}\)=> \(\frac{5}{13}\)<\(\frac{-8}{-13}\)

Có: -8/-13=8/13

Vì 5<8 nên 5/13<8/13

=> 5/13<-8/-13