Lộn, lộn,
\(3^{450}=\left(3^3\right)^{150}=27^{150}\)
Vì \(27^{150}>25^{150}\)nên \(A>B\)
1) Ta có: \(3^{450}=\left(3^3\right)^{150}=9^{150}\).
\(5^{300}=\left(5^2\right)^{150}=25^{150}\)
Ví \(9^{150}< 25^{150}\)nên \(3^{450}< 5^{300}\)
\(\Rightarrow A< B\)