Question

so sánh 8⁵và3.4⁷

Answer 1

\(8^5=2^{15}=2\cdot2^{14}< 3\cdot2^{14}=3\cdot4^7\)

Answer 2

\(8^5=\left(2^3\right)^5=2^{15}=2^{14}.2\)

\(3.4^7=3.2^{14}\)

\(2^{14}=2^{14}\) mà \(3>2\) nên \(8^5< 3.4^7\)