Home
О нас
Products
Services
Регистрация
Войти
Поиск
Stiya
@Stiya
July 2022
1
10
Report
довести тождество
sin (П/4+x)+ cos (П/4+x)= √2 cos x
Распишите подробно пожалуйста, пытаюсь понять как сделать
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
Sin(π/4+x)+cos(π/4+x)=sinπ/4*cosx+cosπ/4*sinx+cosπ/4*cosx-sinπ/4*sinx=
=√2/2*cosx+√2/2*sinx+√2/2*cosx-√2/2*sinx=√2cosx
√2cosx=√2cosx
1 votes
Thanks 1
×
Report "4+x)= √2 cos xРаспишите подробно пожалуйста, пытаюсь понять как сделать..."
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
Sin(π/4+x)+cos(π/4+x)=sinπ/4*cosx+cosπ/4*sinx+cosπ/4*cosx-sinπ/4*sinx==√2/2*cosx+√2/2*sinx+√2/2*cosx-√2/2*sinx=√2cosx
√2cosx=√2cosx