Question

so sánh 2⁶⁰ và 3⁴⁰

Answer 1

\(2^{60}=\left(2^3\right)^{20}=8^{20}\)

\(3^{40}=\left(3^2\right)^{20}=9^{20}\)

\(8^{20}< 9^{20}\Leftrightarrow2^{60}< 3^{40}\)

Answer 2

Ta có:

2⁶⁰=8²⁰

3⁴⁰=9²⁰

Vì 8²⁰<9²⁰ nên 2⁶⁰<3⁴⁰

Answer 3

Ta có :

2⁶⁰ = 1,152921505 x 10¹⁸

3⁴⁰ = 1,215766546 x 10¹⁹

^Vì 1,152921505 x 10¹⁸ < 1,215766546 x 10¹⁹

nên 2⁶⁰ < 3⁴⁰

Answer 4

Ta có :

\(2^{60}=\left(2^3\right)^{20}=8^{20}\)

\(3^{40}=\left(3^2\right)^{20}=9^{20}\)

Vì \(8^{20}< 9^{20}\Leftrightarrow2^{60}< 3^{40}\)

Answer 5

Ta có:

\(2^{60}\) \(=\) \(8^{20}\)

\(3^{40}\) \(=\) \(9^{20}\)

Vì \(8^{20}\) \(< \) \(9^{20}\)

nên \(\Rightarrow\) \(2^{60}\) < \(3^{40}\)