a)
[tex] {26}^{54} > {26}^{45} \\ b) {32}^{79} > {23}^{79} \\c) {1}^{2009}..... {2010}^{0} \\ 1 = 1 \\ d) {1}^{2009} ...... {2009}^{1} \\ 1 < 2009 \\ e) {2009}^{0} ...... {0}^{2009} \\ 1 > 0[/tex]
