Home
О нас
Products
Services
Регистрация
Войти
Поиск
valery00
@valery00
August 2022
1
11
Report
доказать тождество 2sinx*sin2x+cos3x=cosx
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
EgorTat
2sinx*sin2x+cosx*cos2x-sinx*sin2x=cosx,
cosx*cos2x+sinx*sin2x=cosx,
cos(x-2x)=cosx,
cosx=cosx.
5 votes
Thanks 9
×
Report "доказать тождество 2sinx*sin2x+cos3x=cosx..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
cosx*cos2x+sinx*sin2x=cosx,
cos(x-2x)=cosx,
cosx=cosx.