

1,
C= [tex]\frac{lg(5-2\sqrt{6})^{20}+lg(\sqrt{49+20\sqrt{6}})^{20}}{4ln\sqrt{e}+5ln(e^{3}.\sqrt[5]{e})}[/tex]
2,
[tex]a^{\sqrt{log_{a}^{b}}}+b^{\sqrt{log_{b}^{a}}}[/tex]
C= [tex]\frac{lg(5-2\sqrt{6})^{20}+lg(\sqrt{49+20\sqrt{6}})^{20}}{4ln\sqrt{e}+5ln(e^{3}.\sqrt[5]{e})}[/tex]
2,
[tex]a^{\sqrt{log_{a}^{b}}}+b^{\sqrt{log_{b}^{a}}}[/tex]