Ta có:
10750 = (1072)25 = 1144925
7375 = (733)25 = 38901725
Vì: 1144925 < 38901725
=> 10750 < 7375
Ta có:
\(2^{91}=\left(2^{13}\right)^7=8192^7\)
\(5^{35}=\left(5^5\right)^7=3125^7\)
vì \(8192^7>3125^7\Rightarrow2^{91}>5^{35}\)
Ta có:
\(21^{21}=\left(21^3\right)^4=9261^4\)
Vì \(54^4< 9261^4\Rightarrow54^4< 21^{21}\)