b, 333⁴⁴⁴ = (3.111)^4.111 = (81.111⁴)¹¹¹

444³³³ = (4.111)^3.111 = (64.111³)¹¹¹

Vì (81.111⁴)¹¹¹ > (64.111³)¹¹¹ nên 333⁴⁴⁴ > 444³³³

\(333^{444}=111^{444}.3^{444}=111^{444}.81^{111}>111^{333}.64^{111}=111^{333}.4^{333}=444^{333}\)

tach ngoac ra lam ban nhe

333^444=(3.111)^4.111=(81.111)^111 (1)

444^333=(4.111)^3.111=(64.111)^111 (2)

Vì 81>64 nên (1)>(2)

=> 333^444>444^333

333⁴⁴⁴   và  444³³³

 Ta có : 333⁴⁴⁴ = ( 111 . 3 )^111.4 = ( 111⁴ . 3⁴ ) ¹¹¹ = ( 111⁴ . 81 )¹¹¹

444³³³ = ( 111 . 4 )^111.3 = ( 111³ . 4³ )¹¹¹ = ( 111³ . 64 )¹¹¹

Mà 111⁴ . 81 > 111³ . 64 

=> 333⁴⁴⁴ > 444³³³

a) 10^30 và 2^100
Ta có: 10^30 = (10^3)^10 = 1000^10
          2^100 = (2^10)^10 = 1024^10
Do 1024^10 > 1000^10 => 2^100 > 10^30

b) 333^444 và 444^333
Ta có: 333^444 = 111^444 x 3^444 
          444^333 = 111^333 x 4^333 
Tách: 3^444 = (3^4)^111 =81^111 <=>4^333 = (4^3)^111 = 64^111 
Mà: {111^444 > 111^333 (1) 
       {81^111 > 64^111 hay: (3^4)^111 > (4^3)^111 (2) 
Từ (1) và (2) ta có:333^444 > 444^333

c) 3^450 =(3^3)^150 =27^150 
5^300=(5^2)^150=25^150 
vì 27^150 >25^150 =>3^450 > 5^300 
vậy 3^450 > 5^300

a) \(10^{30}=\left(10^3\right)^{10}=1000^{10}\)

\(2^{100}=\left(2^{10}\right)^{10}=1024^{10}\)

Mà \(1000^{10}< 1024^{10}\Rightarrow10^{30}< 2^{100}\)

b) \(3^{400}=\left(3^4\right)^{100}=81^{100}\)

\(5^{300}=\left(5^3\right)^{100}=125^{100}\)

Mà \(81^{100}< 125^{100}\Rightarrow3^{400}< 5^{300}\)

c) \(333^{444}=\left(3.111\right)^{444}=3^{444}.111^{444}=\left(3^4\right)^{111}.111^{444}=81^{111}.111^{444}\)

\(444^{333}=\left(4.111\right)^{333}=4^{333}.111^{333}=\left(4^3\right)^{111}.111^{333}=64^{111}.111^{333}\)

Mà \(81^{111}.111^{444}>64^{111}.111^{333}\Rightarrow333^{444}>444^{333}\)

444^333

Ta có: 333^444=(3.111)^444=3^444.111^444=(3^4)^111.111^444=81^111.111^444 (1)

444^333=(4.111)^333=4^333.111^333=(4^3)^111.111^333=64^111.111^333 (2)

từ (1)và (2)=> ĐPCM

Ta có: 333^444= 111^444 x 3^444 
444^333 = 111^333 x 4^333 
Tách: 3^444 = (3^4)^111 =81^111 <=>4^333 = (4^3)^111 = 64^111 
Mà: {111^444 > 111^333 (1) 
{81^111 > 64^111 hay: (3^4)^111 > (4^3)^111 (2) 
Từ (1) và (2) ta có:333^444 > 444^333 

> 

chúc bạn học tốt

\(333^{444}\)và \(444^{333}\)

Ta có:

\(\Rightarrow\)\(333^{444}=\left(333^4\right)^{111}\)

\(\Rightarrow\)\(444^{333}=\left(444^3\right)^{111}\)

111 đã có cùng số mũ nên ta so sánh \(\left(333^4\right)\)và \(\left(444^3\right)\)ta đc:

\(\Rightarrow\)\(333^4=\left(3.111\right)^4=3^4.111^4=81.111^4\)

\(\Rightarrow\)\(444^3=\left(4.111\right)^3=4^3.111^3=64.111^3\)

Vì: \(81.111^4>61.111^3\)

\(\Rightarrow\)\(333^{444}>444^{333}\)

Ta có: \(81=3^4>4^3=64\)

\(\Rightarrow4^3\cdot111^3< 3^4\cdot111^3< 3^4\cdot111^4\)

\(\Rightarrow444^3< 333^4\)

\(\Rightarrow\left(444^3\right)^{111}< \left(333^4\right)^{111}\)

\(\Rightarrow444^{333}< 333^{444}\)

\(\Rightarrow-333^{444}< -444^{333}\)

\(333^{444}=\left(111.3\right)^{444}=111^{444}.3^{444}\)

\(444^{333}=\left(111.4\right)^{333}=111^{333}.4^{333}\)

mà \(3^{444}=3^{4.111}=81^{111}\)

\(4^{333}=4^{3.111}=64^{111}\)

ta có : \(111^{444}>111^{333}\)

\(81^{111}>64^{111}\)

\(\Rightarrow333^{444}>444^{333}\)

Ta có: \(333^{444}=\left(3.111\right)^{444}=3^{444}.111^{444}\)

          \(444^{333}=\left(4.111\right)^{333}=4^{333}.111^{333}\)

Ta lại có: \(3^{444}=\left(3^4\right)^{111}=81^{111}\)

               \(4^{333}=\left(4^3\right)^{111}=64^{111}\)

\(\Rightarrow3^{444}>4^{333}\left(81^{111}>64^{111}\right)\)

Mặt khác: \(111^{444}>111^{333}\)

\(\Rightarrow3^{444}.111^{444}>4^{333}.111^{333}\)

Vậy \(333^{444}>444^{333}\)

ta có : 333⁴⁴⁴ = (333⁴)¹¹¹

          444³³³ = (444³)¹¹¹

Ta so sánh: 333⁴ và 444³ 

Khi đó: 333⁴ = (3.111)⁴ = 3⁴.111⁴ =81.111³

              444³ = (4.111)³ = 4³.111³ =64.111³

81.111³ > 64.111³

=> 333⁴⁴⁴ > 444³³³