a, 9^5>27^3

​b,3^200>2^300

​c, 32^11<17^14

a) \(2^{300}=\left(2^3\right)^{100}=8^{100}\)

\(3^{200}=\left(3^2\right)^{100}=9^{100}\)

vi \(8^{100}< 9^{100}\)nen \(2^{300}< 3^{200}\)

dễ thế mà ko biết làm

a: \(\left(-\dfrac{1}{16}\right)^{100}=\left(\dfrac{1}{16}\right)^{100}=\left(-\dfrac{1}{2}\right)^{400}\)

\(\left(-\dfrac{1}{2}\right)^{500}=\left(-\dfrac{1}{2}\right)^{500}\)

mà \(400< 500\)

nên \(\left(-\dfrac{1}{16}\right)^{100}< \left(-\dfrac{1}{2}\right)^{500}\)

Ta có:

12^8=(3.2^2)^8=3^8.2^16

27^16.16^9=(3^3)^16.(2^4)^9=3^48.2^36

<=>12^8<27^16.16^9

12^8<27^16.16^9 nha bn

viet cach lam luon nha

Ta có:\(2^{36}\)và \(3^{27}\)

\(2^{36}=\left(2^4\right)^9=16^9\)

\(3^{27}=\left(3^3\right)^9=27^9\)

Vì \(16< 27\Rightarrow16^9< 27^9\)

Vậy....

b,\(9^{20}\)và \(9999^{10}\)

\(9^{20}=\left(9^2\right)^{10}=81^{10}\)

\(9999^{10}\)

Vì \(81< 9999\Rightarrow81^{10}< 9999^{10}\)

Vậy ...

c,\(54^4\)

\(21^{12}=\left(21^3\right)^4=9261^4\)

Vì \(54< 9261\Rightarrow54^4< 9261^4\)

Vậy...

cam on

a, \(9^{20}=\left(3^2\right)^{20}=3^{40}\)

\(27^{13}=\left(3^3\right)^{13}=3^{39}\)

mà \(3^{40}>3^{39}\Leftrightarrow9^{20}=27^{13}\)

vậy \(9^{20}=27^{13}\)

9²⁰ = 3⁴⁰ ; 27¹³ = 3³⁹

Vì 40 > 39 nên 3⁴⁰ > 3³⁹ và 9²⁰ > 27¹³

b ) 3¹⁰⁰⁰ = 30¹⁰⁰

     2¹⁵⁰⁰ = 30¹⁰⁰

Vì 100 =100 nên .....

1) Ta có:

12⁸ = (2².3)⁸ = 2¹⁶.3⁸

8¹² = (2³)¹² = 2³⁶ = 2¹⁶.2²⁰ = 2¹⁶.(2²)¹⁰ = 2¹⁶.4¹⁰

Vì 2¹⁶.3⁸ < 2¹⁶.4¹⁰

=> 12⁸ < 8¹²

2) Ta có:

(-5)³⁹ = -5³⁹ = -(5³)¹³ = -125¹³

(-2)⁹¹ = -2⁹¹ = -(2⁷)¹³ = -128¹³

Vì -125¹³ > -128¹³

=> (-5)³⁹ > (-2)⁹¹

Vì 7 > 3 nên 7²⁰⁰ > 3²⁰⁰

\(7^{200}\)và\(3^{200}\)

Ta có : 7>3 

\(\Rightarrow7^{200}>3^{200}\)

Học tốt

ai chi dum to voi