Hong bé ơi.Bé hong follow anh mà đòi xin đáp án của anh à

ko

mình nghĩ là B

\(\dfrac{1}{2022}\cdot A=\dfrac{2022^{100}+1}{2022^{100}+100}=1-\dfrac{99}{2022^{100}+100}\)

\(\dfrac{1}{2022}B=\dfrac{2022^{101}+1}{2022^{101}+100}=1-\dfrac{9}{2022^{101}+100}\)

2022^100+100<2022^101+100

=>-99/2022^100+100<-99/2022^101+100

=>A<B

=> A/2022 = 2022^100+1/2022^100+2022 = 1- 2021/2022^100+2022

=> B/2022 = 2022^101+1/2022^101+2022 = 1- 2021/2022^101+2022

Nhận thấy 2022^101 + 2022 > 2022^100 + 2022

=> 2021/2022^101 + 2022 < 2021/2022^100 + 2022

=> B/2022 > A/2022 => B>A

Vậy A<B

Ta có: \(A=\frac{2017^{99}+1}{2017^{100}+1}\Rightarrow2017A=\frac{2017^{100}+2017}{2017^{100}+1}=1+\frac{2016}{2017^{100}+1}\)

\(B=\frac{2017^{100}+1}{2017^{101}+1}\Rightarrow2017B=\frac{2017^{101}+2017}{2017^{101}+1}=1+\frac{2016}{2017^{101}+1}\)

\(\frac{2016}{2017^{100}+1}>\frac{2016}{2017^{101}+1}\Rightarrow1+\frac{2016}{2017^{100}+1}>1+\frac{2016}{2017^{101}+1}\)

\(\Rightarrow2017A>2017B\Rightarrow A>B\)

Vậy...

Đặt \(A=\frac{2017^{99}+1}{2017^{100}+1}\)nên \(2017A=\frac{2017^{100}+2017}{2017^{100}+1}=\frac{2017^{100}+1+2016}{2017^{100}+1}=1+\frac{2016}{2017^{100}+1}\)

\(B=\frac{2017^{100}+1}{2017^{101}+1}\)nên \(2017B=\frac{2017^{101}+2017}{2017^{101}+1}=\frac{2017^{101}+1+2016}{2017^{101}+1}=1+\frac{2016}{2017^{101}+1}\)

Vì \(1=1;\frac{2016}{2017^{100}+1}>\frac{2016}{2017^{101}+1}\Rightarrow1+\frac{2016}{2017^{100}+1}>1+\frac{2016}{2017^{101}+1}\)

Hay \(2017A>2017B\)nên \(A>B\)

Vây \(\frac{2017^{99}+1}{2017^{1001}+1}>\frac{2017^{100}+1}{2017^{101}+1}\)

đặt \(A=\frac{2017^{99}+1}{2017^{100}+1}\); \(B=\frac{2017^{100}+1}{2017^{101}+1}\)

Ta có : \(2017A=\frac{2017.\left(2017^{99}+1\right)}{2017^{100}+1}=\frac{2017^{100}+2017}{2017^{100}+1}=\frac{2017^{100}+1+2016}{2017^{100}+1}=1+\frac{2016}{2017^{100}+1}\)

\(2017B=\frac{2017.\left(2017^{100}+1\right)}{2017^{101}+1}=\frac{2017^{101}+2017}{2017^{101}+1}=\frac{2017^{101}+1+2016}{2017^{101}+1}=1+\frac{2016}{2017^{101}+1}\)

Vì \(\frac{2016}{2017^{100}+1}>\frac{2016}{2017^{101}+1}\Rightarrow1+\frac{2016}{2017^{100}+1}>1+\frac{2016}{2017^{101}+1}\Leftrightarrow10A>10B\Rightarrow A>B\)

Xét 99 x 101

= ( 100 - 1 ) x ( 101 - 1 )

= 100 x 100 + 1 x 101 - 1 x 101 - 1 x 1 

= 100 x 100 - 1

Vậy 99 x 101 < 100 x 100

nhầm chút 

Xét 99 x 101

= ( 100 - 1 ) x ( 100 + 1 )

= 100 x 100 + 1 x 101 - 1 x 101 - 1 x 1 

= 100 x 100 - 1

Vậy 99 x 101 < 100 x 100

Ta có:

\(M=\dfrac{100^{100}+1}{100^{99}+1}\)

\(\Rightarrow\dfrac{M}{100}=\dfrac{100^{100}+1}{100\cdot\left(100^{99}+1\right)}\)

\(\Rightarrow\dfrac{M}{100}=\dfrac{100^{100}+1}{100^{100}+100}\)

\(\Rightarrow\dfrac{M}{100}=1-\dfrac{99}{100^{100}+100}\) 

\(N=\dfrac{100^{101}+1}{100^{100}+1}\)

\(\Rightarrow\dfrac{N}{100}=\dfrac{100^{101}+1}{100\cdot\left(100^{100}+1\right)}\)

\(\Rightarrow\dfrac{N}{100}=\dfrac{100^{101}+1}{100^{101}+100}\)

\(\Rightarrow\dfrac{N}{100}=1-\dfrac{99}{100^{101}+100}\)

Mà: \(100^{101}>100^{100}\)

\(\Rightarrow100^{101}+100>100^{100}+100\)

\(\Rightarrow\dfrac{99}{100^{101}+100}< \dfrac{99}{100^{100}+100}\)

\(\Rightarrow1-\dfrac{99}{101^{101}+100}< 1-\dfrac{99}{100^{100}+100}\)

\(\Rightarrow\dfrac{N}{100}< \dfrac{M}{100}\)

\(\Rightarrow N< M\)

Ta có

100 x 100 = 100 x (99 + 1) = 100 x 99 + 100

99 x 101 = 99 x (100 + 1) = 99 x 100 + 99

Vì 100 > 99 nên 100 x 100 > 99 x 101

\(100^{99}+1< 100^{100}+1\)

=>A>B

Ta có: Theo cách tính phân số dư , phân số nào có phần dư lớn hơn thì lớn hơn.

\(\frac{100^{^{100^{ }}}+1}{100^{99}+1}\)\(-1\)=\(\frac{100^{100}}{100^{99}+1}-100^{99}\)

\(\frac{100^{101}+1}{100^{100}+1}-1=\frac{100^{101}-100^{100}}{100^{100}+1}\)

Suy ra:A>B