Question

So sánh :

2⁹¹ và 5³⁵

Answer 1

2⁹¹ và 5³⁵

2⁹¹ = (2¹³)⁷ = 8192⁷

5³⁵ = (5⁵)⁷ = 3125⁷

Vì 8192⁷ > 3125⁷ => 2⁹¹ > 5³⁵

Vậy 2⁹¹ > 5³⁵

Answer 2

2⁹¹ <  5³⁵

Answer 3

2 mũ 21>5 mũ35

Answer 4

\(2^{91}=\left(2^{13}\right)^7\)

\(5^{35}=\left(5^5\right)^7\)

mà \(2^{13}>5^5\)

nên \(2^{91}>5^{35}\)