phungiacop phungiacop

15-09-2021
Mathematics

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y=x-1+2/x-1
tìm đông biến nghịch biến trên hàm số

Respuesta :

rlesandisusanya rlesandisusanya

15-09-2021

Answer:

y = 2

Step-by-step explanation:

[tex]y = \frac{x - 1 + 2}{x - 1} \\ y = \frac{x + 1}{x - 1} \\ y \times (x - 1) = x + 1 \\ y = x + 1 - (x - 1) \\ y = x + 1 - x + 1 \\ y = 2 \\ [/tex]

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