Question

So sánh :

\(2^{27}\) và \(3^{18}\)

Answer 1

Ta có 2²⁷=2^3.9=(2³)⁹=8⁹

         3¹⁸=3^2.9=(3²)⁹=9⁹

Vì 8⁹<9⁹ nên 2^27<3¹⁸

 

 

Answer 2

Ta có : 

2²⁷ = 2^3.9 = 8⁹

3¹⁸ = 3^2.9 = 9⁹

Vì 8⁹ < 9⁹ nên 2²⁷ < 3¹⁸

Answer 3

2²⁷ = (2³)⁹ = 8⁹

3¹⁸ = (3²)⁹ = 9⁹ 

=> 8⁹ < 9⁹

=> 2²⁷ < 3¹⁸