URGENTE!!!!
Me ajudem por favor ( E so a questao 2). E pra amanha isso
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h)![\mathrm{\ell og}_{0,2\,}\sqrt[3]{25} \mathrm{\ell og}_{0,2\,}\sqrt[3]{25}](https://tex.z-dn.net/?f=%5Cmathrm%7B%5Cell+og%7D_%7B0%2C2%5C%2C%7D%5Csqrt%5B3%5D%7B25%7D)
![\mathrm{\ell og}_{0,2\,}\sqrt[3]{25}=x\;\;\Rightarrow\;\;0,2^{x}=\sqrt[3]{25}\\ \\ \\ \Rightarrow\;\;\left(\dfrac{1}{5} \right )^{x}=25^{1/3}\\ \\ \\ \Rightarrow\;\;(5^{-1})^{x}=(5^{2})^{1/3}\\ \\ \\ \Rightarrow\;\;5^{-x}=5^{2/3}\\ \\ \Rightarrow\;\;-x=\dfrac{2}{3}\\ \\ \Rightarrow\;\;x=-\dfrac{2}{3}\\ \\ \Rightarrow\;\;\mathrm{\ell og}_{0,2\,}\sqrt[3]{25}=-\dfrac{2}{3} \mathrm{\ell og}_{0,2\,}\sqrt[3]{25}=x\;\;\Rightarrow\;\;0,2^{x}=\sqrt[3]{25}\\ \\ \\ \Rightarrow\;\;\left(\dfrac{1}{5} \right )^{x}=25^{1/3}\\ \\ \\ \Rightarrow\;\;(5^{-1})^{x}=(5^{2})^{1/3}\\ \\ \\ \Rightarrow\;\;5^{-x}=5^{2/3}\\ \\ \Rightarrow\;\;-x=\dfrac{2}{3}\\ \\ \Rightarrow\;\;x=-\dfrac{2}{3}\\ \\ \Rightarrow\;\;\mathrm{\ell og}_{0,2\,}\sqrt[3]{25}=-\dfrac{2}{3}](https://tex.z-dn.net/?f=%5Cmathrm%7B%5Cell+og%7D_%7B0%2C2%5C%2C%7D%5Csqrt%5B3%5D%7B25%7D%3Dx%5C%3B%5C%3B%5CRightarrow%5C%3B%5C%3B0%2C2%5E%7Bx%7D%3D%5Csqrt%5B3%5D%7B25%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cleft%28%5Cdfrac%7B1%7D%7B5%7D+%5Cright+%29%5E%7Bx%7D%3D25%5E%7B1%2F3%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%285%5E%7B-1%7D%29%5E%7Bx%7D%3D%285%5E%7B2%7D%29%5E%7B1%2F3%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B5%5E%7B-x%7D%3D5%5E%7B2%2F3%7D%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B-x%3D%5Cdfrac%7B2%7D%7B3%7D%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3Bx%3D-%5Cdfrac%7B2%7D%7B3%7D%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cmathrm%7B%5Cell+og%7D_%7B0%2C2%5C%2C%7D%5Csqrt%5B3%5D%7B25%7D%3D-%5Cdfrac%7B2%7D%7B3%7D)
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![\mathrm{\ell og}_{1,25\,}0,64=x\;\;\Rightarrow\;\;1,25^{x}=0,64\\ \\ \\ \Rightarrow\;\;\left(\dfrac{5}{4} \right )^{x}=\dfrac{16}{25}\\ \\ \\ \Rightarrow\;\;\left(\dfrac{5}{4} \right )^{x}=\dfrac{4^{2}}{5^{2}}\\ \\ \\ \Rightarrow\;\;\left[\left(\dfrac{4}{5} \right )^{-1} \right ]^{x}=\left(\dfrac{4}{5} \right )^{2}\\ \\ \\ \Rightarrow\;\;\left(\dfrac{4}{5} \right )^{-x}=\left(\dfrac{4}{5} \right )^{2}\\ \\ \\ \Rightarrow\;\;-x=2\\ \\ \Rightarrow\;\;x=-2\\ \\ \Rightarrow\;\;\mathrm{\ell og}_{1,25\,}0,64=-2 \mathrm{\ell og}_{1,25\,}0,64=x\;\;\Rightarrow\;\;1,25^{x}=0,64\\ \\ \\ \Rightarrow\;\;\left(\dfrac{5}{4} \right )^{x}=\dfrac{16}{25}\\ \\ \\ \Rightarrow\;\;\left(\dfrac{5}{4} \right )^{x}=\dfrac{4^{2}}{5^{2}}\\ \\ \\ \Rightarrow\;\;\left[\left(\dfrac{4}{5} \right )^{-1} \right ]^{x}=\left(\dfrac{4}{5} \right )^{2}\\ \\ \\ \Rightarrow\;\;\left(\dfrac{4}{5} \right )^{-x}=\left(\dfrac{4}{5} \right )^{2}\\ \\ \\ \Rightarrow\;\;-x=2\\ \\ \Rightarrow\;\;x=-2\\ \\ \Rightarrow\;\;\mathrm{\ell og}_{1,25\,}0,64=-2](https://tex.z-dn.net/?f=%5Cmathrm%7B%5Cell+og%7D_%7B1%2C25%5C%2C%7D0%2C64%3Dx%5C%3B%5C%3B%5CRightarrow%5C%3B%5C%3B1%2C25%5E%7Bx%7D%3D0%2C64%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cleft%28%5Cdfrac%7B5%7D%7B4%7D+%5Cright+%29%5E%7Bx%7D%3D%5Cdfrac%7B16%7D%7B25%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cleft%28%5Cdfrac%7B5%7D%7B4%7D+%5Cright+%29%5E%7Bx%7D%3D%5Cdfrac%7B4%5E%7B2%7D%7D%7B5%5E%7B2%7D%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cleft%5B%5Cleft%28%5Cdfrac%7B4%7D%7B5%7D+%5Cright+%29%5E%7B-1%7D+%5Cright+%5D%5E%7Bx%7D%3D%5Cleft%28%5Cdfrac%7B4%7D%7B5%7D+%5Cright+%29%5E%7B2%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cleft%28%5Cdfrac%7B4%7D%7B5%7D+%5Cright+%29%5E%7B-x%7D%3D%5Cleft%28%5Cdfrac%7B4%7D%7B5%7D+%5Cright+%29%5E%7B2%7D%5C%5C+%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B-x%3D2%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3Bx%3D-2%5C%5C+%5C%5C+%5CRightarrow%5C%3B%5C%3B%5Cmathrm%7B%5Cell+og%7D_%7B1%2C25%5C%2C%7D0%2C64%3D-2)
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