Question

so sanh 9^28 va 81^11

Answer 1

Ta có: 81^11 = ( 9^2 )^11 = 9^22

Vì 9^28 > 9^22

=> 9^28 > 81^11

Answer 2

\(81^{11}=\left(9^2\right)^{^{11}}=9^{2.11}=9^{22}< 9^{28}\)

Vậy \(9^{28}>81^{11}\)

Answer 3

2 ngũ 6 nhân 3 mũ 3 = 64 x 27 = 1728