\(7^{300}=\left(7^3\right)^{100}=343^{100}\)
\(4^{450}=\left(2^2\right)^{450}=2^{900}=\left(2^9\right)^{100}=512^{100}\)
mà \(512^{100}>343^{100}\Rightarrow4^{450}>7^{300}\)
Tham khảo nhé
\(4^{450}=2^{900}\)
\(=\left(2^3\right)^{300}=8^{300}\)
\(7^{300}< 8^{300}\)
\(\Rightarrow7^{300}=4^{450}\)
So sánh lũy thừa cùng số mũ :
7^300 = ( 7^3 )^100 = 343^100
4^450 = ( 2^2 )^450 = 2^900 = ( 2^9 )^100 = 512^100
Vì 343^100 < 512^100 => 7^300 < 4^450
Vậy 7^300 < 4^450
Ta có :
\(7^{300}=\left(7^3\right)^{100}=343^{100}\)
\(4^{450}=\left(2^2\right)^{450}=2^{900}=\left(2^9\right)^{100}=512^{100}\)
Vì \(343^{100}< 512^{100}\left(343< 512\right)\)
\(\Leftrightarrow7^{300}< 4^{450}\)
Vậy..................