Respuesta :

[tex] |MN| =\sqrt{(x_{M}-x_{N})^{2}+(y_{M} - y_{N})^{2}} =\sqrt{(-6-(-1))^{2}+(-1-(-7))^{2}} =
\\ \\ =\sqrt{25 +36} =\sqrt{61}
\\ \\Answer \ is \ \sqrt{61} . [/tex]

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