Question

So sánh:

27^11 và 81^8

 

Answer 1

27¹¹ = (3³)¹¹ = 3³³

81⁸ = (3⁴)⁸ = 3²⁴

Vì 33 > 24

=> 3³³ > 3²⁴

=> 27¹¹ > 81⁸

Answer 2

\(27^{11}=\left(3^3\right)^{11}=3^{33}\)

\(81^8=\left(3^4\right)^8=3^{32}\)

mà 33 > 32

=> \(3^{33}>3^{32}\text{.Vậy }27^{11}>81^8\)

Answer 3

Ta có :

\(27^{11}=\left(3^3\right)^{11}=3^{33}\)

\(81^8=\left(3^4\right)^8=3^{32}\)

Vì 3³³ > 3²² nên 27¹¹ > 81⁸

Answer 4

27¹¹>81⁸