Question

so sánh 2⁹¹ và 5³⁵

Answer 1

\(2^{91}=\left(2^{13}\right)^7=8192^7\)

\(5^{35}=\left(5^5\right)^7=3125^7\)

vì \(8192^7>3125^7\Rightarrow2^{91}>5^{35}\)

vậy \(2^{91}>5^{25}\)

Answer 2

\(2^{91}=\left(2^{13}\right)^7=8192^7\)

\(5^{35}=\left(5^5\right)^7=3125^7\)

Vì \(8192^7>3125^7\Leftrightarrow2^{91}>5^{35}\)

Answer 3

\(2^{91}=\left(2^{13}\right)^7=8192^7\)

\(5^{35}=\left(5^5\right)^7=3125^7\)

Vì \(8192^7>3125^7\) nên \(2^{91}>5^{35}\)