Home
О нас
Products
Services
Регистрация
Войти
Поиск
sven76crew
@sven76crew
July 2022
1
13
Report
Решите уравнение: cos3x cosx + sin3x sinx = 1
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
aleks41
Cos3x·cosx=0.5(cos2x+cos4x).
sin3x·sinx =0.5(cos2x-cos4x).
0,5(cos2x+cos4x)+0,5(cos2x-cos4x)=1.
cos 2x=1.
2х=0°+2πn.
х=πn.
4 votes
Thanks 3
×
Report "Решите уравнение: cos3x cosx + sin3x sinx = 1..."
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
sin3x·sinx =0.5(cos2x-cos4x).
0,5(cos2x+cos4x)+0,5(cos2x-cos4x)=1.
cos 2x=1.
2х=0°+2πn.
х=πn.