Question

so sánh 3^75 và 5^50 

Answer 1

Ta có 3^75 = (3^3)^25= 9^25

5^50 = (5^2)^25 =-10^25

=) 9<10 =) 3^75 < 5^50

Answer 2

3⁷⁵  > 3⁵⁰

Answer 3

\(\text{Ta có}:\)

\(3^{75}=\left(3^3\right)^{25}\)

\(5^{50}=\left(5^2\right)^{25}\)

\(\Rightarrow\left(3^3\right)^{25}=27^{25}\)

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

\(\text{Vậy }27^{25}>25^{25}\)

\(\Rightarrow3^{75}>5^{50}\)