31234 = (32)617 = 9617
21851 = (23)617 = 8617
Vì 8617 < 9617 nên 31234 > 21851
630 = 230.330 ; 1215 = (22)15.315 = 230.315
Vì 230.330 > 230.315 nên 630 > 1215
3^1234=3^617.2=6^617 2^1851=2^3 .617=6^617 vay 3^1234=2^1851
Ta có: \(3^{1234}=3^{2.617}=\left(3^2\right)^{617}=9^{617}\)
\(2^{1851}=2^{3.617}=\left(2^3\right)^{617}=8^{617}\)
Vì 9>8 nên \(9^{617}>8^{617}\)hay \(3^{1234}>2^{1851}\)
Vậy..............
tick nha!!!