Articles
Register
Sign In
Search
Annemarie26
@Annemarie26
May 2019
1
137
Report
Aider moi svp et merci d'avance :
Soit x et y deux nombres réels tels que (x+1) (y-1) + 1 ∉ 0
On pose : a = x+2 / xy-x+y
b = (x+1)y / xy-x+y
Montrer que : (x+1) (a-b +1) =a + b-1
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms and service
You must agree before submitting.
Send
Lista de comentários
scoladan
Verified answer
Bonjour,
a + b - 1 = [(x + 2) + (x + 1)y - (xy - x + y)]/(xy - x + y)
= (2x + 2)/(xy - x + y) = 2(x + 1)/(xy - x + y)
a - b + 1 = [(x + 2) - (x + 1)y + (xy - x + y)]/(xy - x + y)
= 2/(xy - x + y)
⇒ (x + 1)(a - b + 1) = 2(x + 1)/(xy - x + y) = a + b - 1
1 votes
Thanks 1
Annemarie26
merci beaucoup pour votre aide
More Questions From This User
See All
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
January 2021 | 0 Respostas
Responda
Annemarie26
October 2020 | 0 Respostas
Responda
Annemarie26
June 2019 | 0 Respostas
Responda
Annemarie26
June 2019 | 0 Respostas
Responda
×
Report "Aider moi svp et merci d'avance :Soit x et y deux nombres réels tels que (x+1) (y-1) + 1 ∉ 0On pose .... Pergunta de ideia de Annemarie26"
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
Sobre nós
Política de Privacidade
Termos e Condições
direito autoral
Contate-Nos
Helpful Social
Get monthly updates
Submit
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Bonjour,a + b - 1 = [(x + 2) + (x + 1)y - (xy - x + y)]/(xy - x + y)
= (2x + 2)/(xy - x + y) = 2(x + 1)/(xy - x + y)
a - b + 1 = [(x + 2) - (x + 1)y + (xy - x + y)]/(xy - x + y)
= 2/(xy - x + y)
⇒ (x + 1)(a - b + 1) = 2(x + 1)/(xy - x + y) = a + b - 1