11. 842.121

\( \triangle \odot \square \square \)

25. sit \( \operatorname{colog}(1 / 3)=x \) Calcula \( \log 22 \)

Indique os valores reais de \( x \) para os quais é possível determinar: \( \begin{array}{ll}\text { a) } \log _{5} x & \text { c) } \log _{4}\left(x^{2}-16\right) \\ \text { b) } \log _{10}(x-3) & \end{array} \)

Ise Gaussian elimination to find the complete solution to the system of equations, or show th \( \begin{array}{r}w+2 x+3 y-z=6 \\ 2 x-3 y+z=5 \\ w-4 x+y=3\end{array} \) A. There is one solution. The solution set is \( \{( \) the conrect choice below and fill in any answer boxes within your choice. B. There are infinitely many solutions. The solution set is \( \{\square\} \). (Simplify your answers.) Type expressions using \( z \) as the variable. Use integers or fractions for any numbers in C. There is no solution. The solution set is \( \varnothing \).

Calcula la derivada de \( e^{x} \).