Ответ:
Будет 2
Пошаговое объяснение:
[tex] \frac{( \sqrt{7 } + \sqrt{17})^{2} }{12 + \sqrt{119} } = \frac{7 + 2 \sqrt{119} + 17}{12 + \sqrt{119} } = \\ \\ = \frac{24 + 2\sqrt{119} }{12 + \sqrt{119} } = \\ \\ = \frac{24 + 2\sqrt{119} }{12 + \sqrt{119} } \times \frac{12 - \sqrt{119} }{12 - \sqrt{119} } = \\ \\ = \frac{(24 + 2\sqrt{119} ) \times (12 - \sqrt{119} )}{(12 + \sqrt{119}) \times (12 - \sqrt{119} ) } = \\ \\ = \frac{288 - 24 \sqrt{119} + 24 \sqrt{119} - 238 }{144 - 119} = \\ \\ = \frac{50}{25} = \frac{10}{5} = \frac{2}{1} = 2[/tex]
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Answers & Comments
Ответ:
Будет 2
Пошаговое объяснение:
[tex] \frac{( \sqrt{7 } + \sqrt{17})^{2} }{12 + \sqrt{119} } = \frac{7 + 2 \sqrt{119} + 17}{12 + \sqrt{119} } = \\ \\ = \frac{24 + 2\sqrt{119} }{12 + \sqrt{119} } = \\ \\ = \frac{24 + 2\sqrt{119} }{12 + \sqrt{119} } \times \frac{12 - \sqrt{119} }{12 - \sqrt{119} } = \\ \\ = \frac{(24 + 2\sqrt{119} ) \times (12 - \sqrt{119} )}{(12 + \sqrt{119}) \times (12 - \sqrt{119} ) } = \\ \\ = \frac{288 - 24 \sqrt{119} + 24 \sqrt{119} - 238 }{144 - 119} = \\ \\ = \frac{50}{25} = \frac{10}{5} = \frac{2}{1} = 2[/tex]