Question

so sánh

\(27^{11}và81^8\)

Answer 1

Ta có :

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

\(81^8=\left(3^4\right)^8=3^{24}\)

Vì \(3^{33}>3^{24}\)

\(\Rightarrow27^{11}>81^8\)

Answer 2

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

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

Vì 3 = 3 ; 33 > 32

=> \(3^{33}>3^{32}\)

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 \(3^{33}>3^{32}\) nên \(27^{11}>81^8\)

Vậy \(27^{11}>81^8\)