Question

9^12va27^7 So sanh nha

Answer 1

9^12=(3^2)^12=3^24

27^7=(3^3)^7=3^21

vi 3^24>3^27 nen 9^12>27^7

chuc em hoc gioi

Answer 2

Ta có : \(9^{12}=\left(3^2\right)^{12}=3^{2.12}=3^{24}\)

           \(27^7=\left(3^3\right)^7=3^{3.7}=3^{21}\)

Vì \(24>21\)\(=>3^{21}< 3^{24}=>27^7< 9^{12}\)

Vậy  \(9^{12}>27^7\)

Answer 3

9¹²=(3²)¹²=3²⁴

27⁷=(3³)⁷=3²¹

Vì: 3²⁴>3²¹=> 9¹²>27⁷

Answer 4

Ta có : 9¹² = (3²)¹² = 3²⁴

27⁷ = (3³)⁷ = 3²¹

Vì 3²⁴ > 3²¹ => 9¹² > 27⁷

k nha Nguyen Le Trong