Вычислите 1) [latex]\sqrt[4]{\frac{9^{2}a^{4}b^{8}}{0,0016c^{0}}}[/latex] при а=2, b=2, с=10 2)  [latex]\sqrt{9+4\sqrt{5}}*(\sqrt{5}-2)[/latex]  

[latex]\sqrt[4]{\frac{9^{2}a^{4}b^{8}}{0,0016c^{0}}}=\sqrt[4]{\frac{9^{2}a^{4}b^{8}}{0,0016}}=\frac{3|a|b^2}{0.2}=\frac{3*|3|*2^2}{0.2}=180[/latex] [latex]\sqrt{9+4\sqrt{5}}*(\sqrt{5}-2)=\sqrt{2^2+2*2\sqrt{5}+(\sqrt{5})^2}*(\sqrt{5}-2)=\sqrt{(2+\sqrt{5})^2}*(\sqrt{5}-2)=|2+\sqrt{5}|(\sqrt{5}-2)=(2+\sqrt{5})(\sqrt{5}-2)=(\sqrt{5})^2-2^2=5-4=1[/latex]