Question

so sánh 199^20 và 2017^15

 

Answer 1

199²⁰ = ( 199⁴ )⁵

2017¹⁵ = ( 2017³ )⁵

Vì 199⁴ < 2017³ nên 199²⁰ < 2017¹⁵ 

Answer 2

2017^15<199^20

Answer 3

\(199^{20}=\left(199^4\right)^5\)

\(2017^{15}=\left(2017^3\right)^5\)

Vì \(199^4< 2017^3\left(199< 2017\right)\)

Nên \(199^{20}< 2017^{15}\)