\left\{ \begin{array} { l } { x ^ { 2 } + y ^ { 2 } \leq 4 } \\ { y < - x + 2 } \\ { \frac { x ^ { 2 } } { 9 } + \frac { y ^ { 2 } } { 1 } \leq 1 } \end{array} \right.
Solve for x
x\in \mathrm{R}\setminus ([2-y,\infty)\text{, }(y\geq -1\text{ and }y<-\frac{3\sqrt{6}}{10}+\frac{1}{5})\text{ or }(y>\frac{3\sqrt{6}}{10}+\frac{1}{5}\text{ and }y\leq 1)\text{ or }(y\geq -2\text{ and }y<0)\text{ or }y\geq 0\text{ or }y<-2\cup (\sqrt{4-y^{2}},\infty)\text{, }y\geq 2\text{ or }y\leq 0\text{ or }(y\geq -1\text{ and }y\leq -\frac{\sqrt{10}}{4})\text{ or }(y\geq \frac{\sqrt{10}}{4}\text{ and }y\leq 1)\text{ or }(y\geq 0\text{ and }y\leq 2)\cup (-\infty,-\sqrt{4-y^{2}})\cup (3\sqrt{1-y^{2}},\infty)\cup (-\infty,-3\sqrt{1-y^{2}}))\text{, }y\neq 0\text{ and }|y|\leq 1
Solve for y
y\in \mathrm{R}\setminus ([2-x,\infty)\text{, }(x<-\frac{3\sqrt{6}}{10}+\frac{9}{5}\text{ and }|x|\leq 3)\text{ or }(x\geq -2\text{ and }x<0)\text{ or }x\geq 0\text{ or }x<-2\cup (\sqrt{4-x^{2}},\infty)\text{, }x\leq \frac{3\sqrt{6}}{4}\text{ or }x\geq 2\text{ or }(x\geq 0\text{ and }x\leq 2)\cup (-\infty,-\sqrt{4-x^{2}})\cup (\frac{\sqrt{9-x^{2}}}{3},\infty)\cup (-\infty,-\frac{\sqrt{9-x^{2}}}{3}))\text{, }x\neq 0\text{ and }x<2\text{ and }|x|\leq 2
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