Question

so sánh

\(31^{11}và17^{14}\)

Answer 1

31<32=2⁵

31¹¹< (2⁵)¹¹ =2⁵⁵

17>16=2⁴

17¹⁴>(2⁴)¹⁴=2⁵⁶

55<56=>2⁵⁵<2⁵⁶

=>31¹¹<17¹⁴

Answer 2

Ta có:

\(31^{11}< 32^{11}=\left(2^5\right)^{11}=2^{55}\)

\(17^{14}>16^{14}=\left(2^4\right)^{14}=2^{56}\)

\(Vì\) \(2^{55}< 2^{56}\Rightarrow31^{11}< 17^{14}\)

\(Vậy\)\(31^{11}< 17^{14}\)