Question

So sánh 27¹³ và 81⁹

Answer 1

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

\(81^9=\left(3^4\right)^9=3^{36}\)

Do \(3^{39}>3^{36}\)

\(\Rightarrow27^{13}>81^9\)

Answer 2

27¹³ = 3³⁹

81⁹ = 3³⁶

Vì 3³⁹ > 3³⁶ nên 27¹³ > 81⁹

Answer 3

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

\(81^9=\left(3^4\right)^9=3^{36}\)

\(3^{39}>3^{36}\)

\(\Rightarrow27^{13}>81^9\)