Question

so sanh 5 luy thua 45 va 25 luy thua 15

 

Answer 1

Ta có: 25¹⁵=(5²)¹⁵=5³⁰

Vì 45>30 => 5⁴⁵>5³⁰ hay 5⁴⁵ > 25¹⁵

Answer 2

\(25^{15}=\left(5^2\right)^{15}=5^{30}\)

Có :\(5^{30}< 5^{45}\)

\(\Rightarrow5^{45}>5^{30}\)