Home
О нас
Products
Services
Регистрация
Войти
Поиск
Дианчик2000
@Дианчик2000
September 2021
1
8
Report
решите пожалуйста,срочно нужно
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
sedinalana
Verified answer
1)ctgb-tga
2))cosacosb-sinasinb+sinasinb)/(sinacosb+cosasinb-cosasinb)=
=cosacosb/(sinacosb)=cosa/sinb=ctga
3)cos²Ф+cos2Ф=cos²Ф+2cos²Ф-1=3cos²Ф-1
1 votes
Thanks 1
×
Report "решите пожалуйста,срочно нужно..."
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
Verified answer
1)ctgb-tga2))cosacosb-sinasinb+sinasinb)/(sinacosb+cosasinb-cosasinb)=
=cosacosb/(sinacosb)=cosa/sinb=ctga
3)cos²Ф+cos2Ф=cos²Ф+2cos²Ф-1=3cos²Ф-1