a ) 2²⁰⁰<8³⁰⁰

b ) 25²⁰⁰>5³⁰⁰

c ) 4²¹<64⁷

a)\(8^{300}=\left(2^3\right)^{300}=2^{900}\)

Vì \(200< 900\Rightarrow2^{200}< 8^{300}\)

b)\(25^{200}=\left(5^2\right)^{200}=5^{400}\)

Vì \(400>300\Rightarrow25^{200}>5^{300}\)

c)\(64^7=\left(4^3\right)^7=4^{21}\)

Vì \(4^{21}=4^{21}\Rightarrow4^{21}=64^7\)

a) \(2^{200}=2^{200}\)

\(8^{300}=\left(2^3\right)^{300}=2^{900}\)

vi \(2^{200}< 2^{900}\)nen \(2^{200}< 8^{300}\)

b) \(25^{200}=\left(5^2\right)^{200}=5^{400}\)

\(5^{300}=5^{300}\)

vi \(5^{400}>5^{300}\)nen \(25^{200}>5^{300}\)

c) \(4^{21}=\left(2^2\right)^{21}=2^{42}\)

\(64^7=\left(2^6\right)^7=2^{42}\)

vi \(2^{42}=2^{42}\)nen \(4^{21}=64^7\)

 Để tớ ghi đề giùm cho các bạn hiểu :

\(11^{21}+1\div11=121\)

\(4^{2x}+1=64\)

So sánh

\(10^{30}...2^{100}\)

\(2^{98}...9^{42}\)

bài 1

4^2x+1 = 64

=> 4^2x+1 = 4³

=> 2x + 1 = 3

=> 2x = 2

=> x = 1

bài 2

10³⁰ = ( 10³ )¹⁰ = 1000¹⁰

2¹⁰⁰ = ( 2¹⁰ )¹⁰ = 1024¹⁰

=> 1000¹⁰ < 1024¹⁰

=> 10³⁰ < 2¹⁰⁰

2⁹⁸ = ( 2⁷ )¹⁴ = 128¹⁴

9⁴² = ( 9³ )¹⁴ = 729¹⁴

=> 128¹⁴ < 729¹⁴

=> 2⁹⁸ < 9⁴²

`#3107.101107`

a)

`64^150` và `4^450`

Ta có:

`64^150 = (4^3)^150 = 4^(3*150) = 4^450`

Vì `450 = 450 => 4^450 = 4^450 => 64^150 = 4^450`

Vậy, `64^150 = 4^450`

b)

`81^64` và `27^100`

Ta có:

`81^64 = (3^4)^64 = 3^(4*64) = 3^256`

`27^100 = (3^3)^100 = 3^(3*100) = 3^300`

Vì `256 < 300 => 3^256 < 3^300 => 81^64 < 27^100`

Vậy, `81^64 < 27^100`

c)

`125^1000` và `25^3000`

Ta có:

`125^1000 = (5^3)^1000 = 5^(3*1000) = 5^3000`

Vì `5 < 25 => 5^3000 < 25^3000 => 125^1000 < 25^3000`

Vậy, `125^1000 < 25^3000`

d)

`4^30` và `3^40`

Ta có:

`4^30 = 4^(3*10) = (4^3)^10 = 64^10`

`3^40 = 3^(4*10) = (3^4)^10 = 81^10`

Vì `64 < 81 => 64^10 < 81^10 => 4^30 < 3^40`

Vậy, `4^30 < 3^40`

m)

`2^5000` và `5^2000`

Ta có:

`2^5000 = 2^(5*1000) = (2^5)^1000 = 32^1000`

`5^2000 = 5^(2*1000) = (5^2)^1000 = 25^1000`

Vì `32 > 25 => 32^1000 > 25^1000 => 2^5000 > 5^2000`

Vậy, `2^5000 > 5^2000`

h)

`6^450` và `3^750`

Ta có:

`6^450 = 6^(150*3) = (6^3)^150 = 216^150`

`3^750 = 3^(150*5) = (3^5)^150 = 243^150`

Vì `216 < 243 => 216^150 < 243^150 => 6^450 < 3^750`

Vậy, `6^450 < 3^750`

0)

`333^444` và `444^333`

Ta có:

`333^444 = 333^(4*111) = (333^4)^111 = (3^4 *111^4)^111 = 81^111 * 111^444`

`444^333 = 444^(3*111) = (444^3)^111 = (4^3 * 111^3)^111 = 64^111 * 111^333`

Vì `81 > 64;` `111^444 > 111^333`

`=> 81^111 * 111^444 > 64^111 * 111^333`

Vậy, `333^444 > 444^333.`

a) Ta có:

\(64^{150}=\left(2^6\right)^{150}=2^{900}\)

\(4^{450}=\left(2^2\right)^{450}=2^{900}\)

Mà: \(2^{900}=2^{900}\Rightarrow64^{150}=4^{450}\)

b) Ta có:

\(81^{64}=\left(3^4\right)^{64}=3^{256}\)

\(27^{100}=\left(3^3\right)^{100}=3^{300}\)

Mà: \(3^{300}>3^{256}\Rightarrow27^{100}>81^{64}\)

c) Ta có: 

\(125^{1000}=\left(5^3\right)^{1000}=5^{3000}\)

Mà: \(25^{3000}>5^{3000}\Rightarrow25^{3000}>125^{1000}\)

d) Ta có:

\(4^{30}=\left(4^3\right)^{10}=64^{10}\)

\(3^{40}=\left(3^4\right)^{10}=81^{10}\)

Mà: \(81^{10}>64^{10}\Rightarrow3^{40}>4^{30}\)

m) Ta có:

\(2^{5000}=\left(2^5\right)^{1000}=32^{1000}\)

\(5^{2000}=\left(5^2\right)^{1000}=25^{1000}\)

Mà: \(25^{1000}< 32^{1000}\Rightarrow2^{5000}>5^{2000}\)

h) Ta có:

\(6^{450}=\left(6^3\right)^{150}=216^{150}\)

\(3^{750}=\left(3^5\right)^{150}=243^{150}\)

Mà: \(243^{150}>216^{150}\Rightarrow3^{750}>6^{450}\)

.... 

a) 4⁴⁵⁰ = (4³)¹⁵⁰ = 64¹⁵⁰

b) 81⁶⁴ = (3⁴)⁶⁴ = 3²⁵⁶

27¹⁰⁰ = (3³)¹⁰⁰ = 3³⁰⁰

Do 256 < 300 nên 3²⁵⁶ < 3³⁰⁰

Vậy 81⁶⁴ < 27¹⁰⁰

c) 125¹⁰⁰⁰ = (5³)¹⁰⁰⁰ = 5³⁰⁰⁰

Do 5 < 25 nên 5³⁰⁰⁰ < 25³⁰⁰⁰

Vậy 125¹⁰⁰⁰ < 25³⁰⁰⁰

d) 4³⁰ = (4³)¹⁰ = 64¹⁰

3⁴⁰ = (3⁴)¹⁰ = 81¹⁰

Do 64 < 81 nên 64¹⁰ < 81¹⁰

Vậy 4³⁰ < 3⁴⁰

m) 2⁵⁰⁰⁰ = (2⁵)¹⁰⁰⁰ = 32¹⁰⁰⁰

5²⁰⁰⁰ = (5²)¹⁰⁰⁰ = 25¹⁰⁰⁰

Do 32 > 25 nên 32¹⁰⁰⁰ > 25¹⁰⁰⁰

Vậy 2⁵⁰⁰⁰ > 5²⁰⁰⁰

h) 6⁴⁵⁰ = (6³)¹⁵⁰ = 216¹⁵⁰

3⁷⁵⁰ = (3⁵)¹⁵⁰ = 243¹⁵⁰

Do 216 < 243 nên 216¹⁵⁰ < 243¹⁵⁰

Vậy 6⁴⁵⁰ < 3⁷⁵⁰

o) 333⁴⁴⁴ = (333⁴)¹¹¹ = [(3.111)⁴]¹¹¹ = (3⁴.111⁴)¹¹¹ = (81.111⁴)¹¹¹

444³³³ = (444³)¹¹¹ = [(4.111)³]¹¹¹

= (4³.111³)¹¹¹ = (64.111³)¹¹¹

Do 81 > 64 ⇒ 81.111⁴ > 64.111⁴ (1)

Do 4 > 3 ⇒ 64.111⁴ > 64.111³ (2)

Từ (1) và (2) ⇒ 81.111⁴ > 64.111³

⇒ (81.111⁴)¹¹¹ > (64.111³)¹¹¹

Vậy 333⁴⁴⁴ > 444³³³

a) Vì \(-45< -16\) nên \(\left(-\dfrac{45}{17}\right)^{15}< \left(\dfrac{-16}{17}\right)^{15}\)

b) Vì \(21< 23\) nên \(\left(-\dfrac{8}{9}\right)^{21}< \left(-\dfrac{8}{9}\right)^{23}\)

c) \(27^{40}=3^{3^{40}}=3^{120}\)

\(64^{60}=8^{2^{60}}=8^{120}\)

Vì \(3< 8\) nên \(3^{120}< 8^{120}\) hay \(27^{40}< 64^{60}\)

con ai kooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

co don quaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

a) ta có: 7^10 < 7^14 = (7^2)^7 = 49^7 < 50^7

=> 7^10 < 50^7

b) ta có: 5^30 = (5^3)^10 = 125^10 > 124^10

=> 5^30 > 124^10

c) ta có: 9^21 = (9^3)^7=729^7

phần d thì mk ko bk, xl bn nha

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