Предмет: Математика, автор: riznyknazaryk

Виконай дл
2
(² + ¹) : ( ² − } )
Виберіть одну відповідь:
2xy
у-х
2xy
4xy
2xy
y+x

Приложения:

riznyknazaryk: дам 100 балов

Ответы

Автор ответа: iramazurk
1

Ответ:

2ху/у-х

Пошаговое объяснение:

1) 2/у + 2/х = 2х/ху + 2у/ху = (2х + 2у)/ху

2) 1/х² - 1/у² = у²/х²у² - х²/х²у² = (у² - х²)/х²у²

3) (2х + 2у)/ху : (у² - х²)/х²у² =

(2х + 2у)/ху * х²у²/(у² - х²) =

2(х + у)/ху * х²у²/(у - х)(у + х) =

2/1 * ху/(у - х) = 2ху/(у - х)


riznyknazaryk: дякую
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