(sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3)) + (sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3)) =

(sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3)) + (sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3)) =
- Предмет:
  Математика
- Автор:
  johan
- 1 год назад

Ответы 2

Ответ:
8
рораловлутлвллуььужадьвб
- Автор:
  hunter9mdj
- 1 год назад
- 10
Ответ:
Выражение (sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3)) + (sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3)) равно 4.
Пошаговое объяснение:
(sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3)) = [(sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3))] * [(sqrt(5) - sqrt(3))/(sqrt(5) - sqrt(3))]
= (5 - 2sqrt(15) + 3)/(5 - 3)
= 2 - sqrt(15)
(sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3)) = [(sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3))] * [(sqrt(5) + sqrt(3))/(sqrt(5) + sqrt(3))]
= (5 + 2sqrt(15) + 3)/(5 - 3)
= 2 + sqrt(15)
(sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3)) + (sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3)) = (2 - sqrt(15)) + (2 + sqrt(15))
= 4
- Автор:
  gilbertchristensen
- 1 год назад
- 4
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(sqrt(5) - sqrt(3))/(sqrt(5) + sqrt(3)) + (sqrt(5) + sqrt(3))/(sqrt(5) - sqrt(3)) =

Ответы 2

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