Question

So sánh:

a. 5⁴⁵  và     3⁷³

b.   2⁸³    và     3⁵⁷

 

^{giúp mik vs các bn ơi!}

Answer 1

\(5^{45}=5.\left(5^2\right)^{22}=5.25^{22}\) 

\(3^{73}=3^4.\left(3^3\right)^{23}=81.27^{23}\)

\(\Rightarrow5^{45}< 3^{73}\)

Answer 2

\(2^{83}=2^2.\left(2^3\right)^{27}=4.8^{27}\)

\(3^{57}=3^3.\left(3^2\right)^{27}=27.9^{27}\)

\(\Rightarrow2^{83}< 3^{57}\)