Home
О нас
Products
Services
Регистрация
Войти
Поиск
oborinamascha
@oborinamascha
August 2022
1
14
Report
Найдите sin(a+b), если sin a = 3/5, cos b = -3/5 и a принадлежит 1 четверти, b принадлежит 3 четверти.
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
Sina=3/5⇒cosa=√(1-sin²a)=√(1-9/25)=√(16/25)=4/5
cosb=-3/5⇒sinb=-√(1-cos²b)=-√(1-9/25)=-4/5
sin(a+b)=sinacosb+cosasinb=3/5*(-3/5)+4/5*(-4/5)=-9/25-16/25=-25/25=-1
1 votes
Thanks 5
More Questions From This User
See All
oborinamascha
August 2022 | 0 Ответы
zadanie 1 sostavte logicheski svyazannyj tekst iz sleduyushih predlozhenij k kakom
Answer
oborinamascha
August 2022 | 0 Ответы
bezlichnye predlozheniya
Answer
oborinamascha
August 2022 | 0 Ответы
rebyata pomogite pozhalujsta srochno nuzhno vzaimopomoshpomogu vam tozhe9294315daf76084e569fa826fd478ae9 72128
Answer
oborinamascha
August 2022 | 0 Ответы
rebyata pomogite pozhalujsta srochno nuzhno vzaimopomoshpomogu vam tozhe
Answer
oborinamascha
August 2022 | 0 Ответы
tex]...
Answer
oborinamascha
July 2022 | 0 Ответы
20 ostatka a tretij ostavshiesya 36 detalej skolko vsego detalej izgotovili rab2d5aba71ddc0a054bbbf3fcd7100d7f7 12673
Answer
oborinamascha
July 2022 | 0 Ответы
pomogite pozhalujsta srochno nuzhno zavtra kontrolnayapomogu vam tozhe
Answer
oborinamascha
July 2022 | 0 Ответы
chto nazyvayut davleniemfe093dd1cdd12a727fa9e747aab00b6d 11233
Answer
oborinamascha
July 2022 | 0 Ответы
reshite pozhalujstasrochnoe348d3dd3bccd32f6228d850164aa25a 79991
Answer
oborinamascha
July 2022 | 0 Ответы
rabota s tochki zreniya termodinamikii zhelatelno formulu pomogite pozhalujsta s
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 "5 и a принадлежит 1 четверти, b принадлежит 3 четверти..."
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
Sina=3/5⇒cosa=√(1-sin²a)=√(1-9/25)=√(16/25)=4/5cosb=-3/5⇒sinb=-√(1-cos²b)=-√(1-9/25)=-4/5
sin(a+b)=sinacosb+cosasinb=3/5*(-3/5)+4/5*(-4/5)=-9/25-16/25=-25/25=-1