\(5^{400}=\left(5^4\right)^{100}=625^{100}\)
\(4^{500}=\left(4^5\right)^{100}=1024^{100}\)
\(625< 1024\Rightarrow625^{100}< 1024^{100}\Rightarrow5^{400}< 4^{500}\)
Ta có:
5400=(54)100=625100
4500=(45)100=1024100
Vì 1024>625=>1024100>625100
=>4500>5400
Ta có:
+) 5400=(54)100=625100
+) 4500=(45)100=1024100
Vậy 1024100>625100
=> 4500>5400
5400 =(54)100=625100
4500=(45)100=1024100
Vì 625100 < 1024100
=> 5400 < 4500