bn đưa về cùng cơ số hoặc số mũ là giải đc đó ^^
a)\(2^{300}=\left(2^3\right)^{100}=8^{100}\)
\(3^{200}=\left(3^2\right)^{100}=9^{100}\)
\(\Rightarrow9^{100}>8^{100}\Leftrightarrow3^{200}>2^{300}\)
B)\(10^{30}=\left(10^3\right)^{10}=1000^{10}\)
\(2^{100}=\left(2^{10}\right)^{10}=1024^{10}\)
\(\Rightarrow1024^{10}>1000^{10}\)hay \(2^{100}>10^{30}\)
c)\(3^{450}=\left(3^3\right)^{150}=27^{150}\)
\(5^{300}=\left(5^2\right)^{150}=25^{150}\)
Vì \(27^{150}>25^{150}\Rightarrow3^{450}>5^{300}\)
\(a,A=2^{300}=2^{3.100}=\left(2^3\right)^{100}=8^{100}.\)
\(B=3^{200}=3^{2.100}=\left(3^2\right)^{100}=9^{100}\)
Vì \(8^{100}< 9^{100}\)
\(\Rightarrow A< B\)
\(b,A=10^{30}=10^{3.10}=\left(10^3\right)^{10}=1000^{10}\)
\(B=2^{100}=2^{10.10}=\left(2^{10}\right)^{10}=1024^{10}\)
Vì \(1000^{10}< 1024^{10}\)
\(\Rightarrow A< B\)
\(c,A=3^{450}=3^{3.150}=\left(3^3\right)^{150}=27^{150}\)
\(B=5^{300}=5^{2.150}=\left(5^2\right)^{150}=25^{150}\)
Vì \(27^{150}>25^{150}\)
\(\Rightarrow A>B\)