Question

so sánh 2 mũ 30 và 3 mũ 20

Answer 1

𝓓𝓪̣𝓷𝓰 𝓷𝓪̀𝔂 𝓵𝓪̀ 𝓭𝓪̣𝓷𝓰 𝓭𝓾̛𝓪 𝓿𝓮̂̀ 𝓬𝓾̀𝓷𝓰 𝓼𝓸̂́ 𝓶𝓾̃ 𝓭𝓮̂̉ 𝓼𝓸 𝓼𝓪́𝓷𝓱 𝓷𝓱𝓪 𝓫𝓷!𝓣𝓪 𝓬𝓸́ : \(2^{30}=\left(2^{10}\right)^{20}=1024^{20}\)

𝓥𝓲̀ : \(1024>3\) 𝓷𝓮̂𝓷 \(1024^{20}>3^{20}\)

\(\Rightarrow2^{30}>3^{20}\)

Answer 2

2³⁰ = (2³)¹⁰ = 8¹⁰

3²⁰ = (3²)¹⁰ = 9¹⁰

Ta thấy: 8<9

=> 8¹⁰ < 9¹⁰

vậy 2³⁰ < 3²⁰