Articles
Register
Sign In
Search
zoukenziee
@zoukenziee
January 2021
1
74
Report
Aidez moi sil vous plait
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
ProfdeMaths1
Verified answer
Ex 3 :
(1-cos(x))(1+cos(x))=1²-cos²(x)=sin²(x)
donc (1-cos(x))/sin(x)=sin(x)/(1+cos(x))
(1-sin(x))(1+sin(x))=1²-sin²(x)=cos²(x)
donc cos(x)/(1-sin(x))=(1+sin(x))/cos(x)
(cos(x))^4-(sin(x))^4=(cos²(x)-sin²(x))(cos²(x)+sin²(x))
=cos²(x)-sin²(x)
=cos²(x)-(1-sin²(x))
=2cos²(x)-1
1 votes
Thanks 1
zoukenziee
Merci
zoukenziee
Et pour la suite
zoukenziee
S'il vous plaît
More Questions From This User
See All
zoukenziee
January 2021 | 0 Respostas
Pouvez vous m'aider svp
Responda
zoukenziee
January 2021 | 0 Respostas
Bonjour pouvez vous maider pour cette exercice
Responda
zoukenziee
January 2021 | 0 Respostas
Bonjour je suis en classe de 2nde et jaurais besoin d'aide.Merci
Responda
zoukenziee
January 2021 | 0 Respostas
Responda
zoukenziee
January 2021 | 0 Respostas
Responda
zoukenziee
January 2021 | 0 Respostas
Jai besoin d'aide pour les exercices 2 et 3 sil vous plait je veux les explications car je n'y arrive vraiment pas. Merci d'avance
Responda
zoukenziee
January 2021 | 0 Respostas
Responda
zoukenziee
January 2021 | 0 Respostas
Quelqu'un peut maider pour lexercice 3 et 4 sio vous plait Merci
Responda
zoukenziee
January 2021 | 0 Respostas
Responda
Zoukenziee
June 2019 | 0 Respostas
Responda
×
Report "Aidez moi sil vous plait.... Pergunta de ideia de zoukenziee"
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
Ex 3 :(1-cos(x))(1+cos(x))=1²-cos²(x)=sin²(x)
donc (1-cos(x))/sin(x)=sin(x)/(1+cos(x))
(1-sin(x))(1+sin(x))=1²-sin²(x)=cos²(x)
donc cos(x)/(1-sin(x))=(1+sin(x))/cos(x)
(cos(x))^4-(sin(x))^4=(cos²(x)-sin²(x))(cos²(x)+sin²(x))
=cos²(x)-sin²(x)
=cos²(x)-(1-sin²(x))
=2cos²(x)-1