Пошаговое объяснение:
[tex]2a=22\ \ \ \ e=\frac{\sqrt{57} }{11} \\2a=22\ |:2\\a=11.\\e=\frac{c}{a} =\frac{\sqrt{57}}{11}\ \ \ \ c=\sqrt{57} \ \ \ \ b^2=a^2-c^2\\ b^2=11^2-(\sqrt{57})^2=121-57=64.\\ b_{1,2}=б8. \ \ \ \ b > 0\ \ \ \ \ \Rightarrow\\b=8. \ \ \ \ \Rightarrow\\\frac{x^2}{11^2} +\frac{y^2}{8^2}=1\\ \frac{x^2}{121} +\frac{y^2}{64} =1.[/tex]
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Пошаговое объяснение:
[tex]2a=22\ \ \ \ e=\frac{\sqrt{57} }{11} \\2a=22\ |:2\\a=11.\\e=\frac{c}{a} =\frac{\sqrt{57}}{11}\ \ \ \ c=\sqrt{57} \ \ \ \ b^2=a^2-c^2\\ b^2=11^2-(\sqrt{57})^2=121-57=64.\\ b_{1,2}=б8. \ \ \ \ b > 0\ \ \ \ \ \Rightarrow\\b=8. \ \ \ \ \Rightarrow\\\frac{x^2}{11^2} +\frac{y^2}{8^2}=1\\ \frac{x^2}{121} +\frac{y^2}{64} =1.[/tex]