Нужно очень срочно решение

Решите задачу:

$\left \{ {{sinx\ \textgreater \ 0} \atop {cosx \leq 0}} \right. \; \to \; x\in 2\; chetvert\; \to \frac{\pi}{2}+2\pi n\ \textless \ x\ \textless \ \pi +2\pi n,\; n\in Z\\\\\\ \left \{ {{(\frac{1}{3})^{x}\ \textgreater \ \frac{1}{243} \atop {2^{x}\ \textgreater \ 4}} \right. \; \left \{ {{(\frac{1}{3})^{x}\ \textgreater \ (\frac{1}{3})^5} \atop {2^{x}\ \textgreater \ 2^2}} \right. \\\\ \left \{ {{x\ \textless \ 5} \atop {x\ \textgreater \ 2}} \right. \; \; \Rightarrow \; \; 2\ \textless \ x\ \textless \ 5\\\\oo$