Home
О нас
Products
Services
Регистрация
Войти
Поиск
druzhchenko200
@druzhchenko200
August 2022
1
2
Report
sin(a+b)cos(a-b)=sina cosa+sinb cosb
Докажите тождество
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
IrkaShevko
Verified answer
Sin(a+b) = sina*cosb + cosa*sinb
cos(a - b) = cosa*cosb+sina*sinb
sin(a+b)*cos(a-b) = sina*cosa*(cosb)^2 + sinb*cosb*(cosa)^2+sinb*cosb*(sina)^2 + sina*cosa*(sinb)^2 = sina*cosa*((sinb)^2 + (cosb)^2) + sinb*cosb*((sina)^2 + (cosa)^2) = sina*cosa + sinb*cosb - что и требовалось доказать
8 votes
Thanks 7
More Questions From This User
See All
druzhchenko200
August 2022 | 0 Ответы
chemu ravnyaetsya kulonovskaya sila vzaimodejstviya dvuh tochechnyh zaryadov po 2 nkl ka
Answer
druzhchenko200
July 2022 | 0 Ответы
25...
Answer
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "sin(a+b)cos(a-b)=sina cosa+sinb cosb Докажите тождество..."
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 © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Sin(a+b) = sina*cosb + cosa*sinbcos(a - b) = cosa*cosb+sina*sinb
sin(a+b)*cos(a-b) = sina*cosa*(cosb)^2 + sinb*cosb*(cosa)^2+sinb*cosb*(sina)^2 + sina*cosa*(sinb)^2 = sina*cosa*((sinb)^2 + (cosb)^2) + sinb*cosb*((sina)^2 + (cosa)^2) = sina*cosa + sinb*cosb - что и требовалось доказать