Home
О нас
Products
Services
Регистрация
Войти
Поиск
BCCBuHmoPe3
@BCCBuHmoPe3
August 2022
1
15
Report
Упростите выражение sin (arctg 2/3)
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
Удачник66
Verified answer
Арктангенс х - это угол или число, тангенс которого равен х.
tg a = 2/3; tg^2 a = 4/9; 1 + tg^2 a = 1/cos^2 a
cos^2 a = 1 / (1 + tg^2 a) = 1 / (1 + 4/9) = 1 / (13/9) = 9/13
sin^2 a = 1 - cos^2 a = 1 - 9/13 = 4/13
sin a = √(4/13) = 2/√13 = 2√13/13
6 votes
Thanks 19
More Questions From This User
See All
BCCBuHmoPe3
August 2022 | 0 Ответы
6 reshite pliz76dcc1e72095348ddfb3b87286367dec 99939
Answer
BCCBuHmoPe3
August 2022 | 0 Ответы
rasschitajte obem sn kotoryj poluchaetsya iz 128 g sas soderzhashego 5 primese
Answer
BCCBuHmoPe3
August 2022 | 0 Ответы
mary and jane go to the theatre every sunday zadajte voprosy 1 obshij 2 specia
Answer
BCCBuHmoPe3
August 2022 | 0 Ответы
3)...
Answer
BCCBuHmoPe3
July 2022 | 0 Ответы
dlya veshestva ch2ch ch2 ch3 sostavte strukturnye formuly 2 gomologov i 2 izomer
Answer
BCCBuHmoPe3
July 2022 | 0 Ответы
shhbr cho poluchenie butadiena 13 iz butana vzaimodejstvie
Answer
BCCBuHmoPe3
June 2022 | 0 Ответы
chto iz perechislennogo ekonomicheskoe blago a transport b neft v voda g isko
Answer
BCCBuHmoPe3
October 2021 | 0 Ответы
vse formuly ploshadi trapecii
Answer
BCCBuHmoPe3
October 2021 | 0 Ответы
sostavte formulu 44 dimetil 3 etilgeksen 1
Answer
BCCBuHmoPe3
September 2021 | 0 Ответы
kakoj glagol lishnij po grammaticheskomu priznaku vybrat glagol i termin nazyva
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 "3)..."
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
Арктангенс х - это угол или число, тангенс которого равен х.tg a = 2/3; tg^2 a = 4/9; 1 + tg^2 a = 1/cos^2 a
cos^2 a = 1 / (1 + tg^2 a) = 1 / (1 + 4/9) = 1 / (13/9) = 9/13
sin^2 a = 1 - cos^2 a = 1 - 9/13 = 4/13
sin a = √(4/13) = 2/√13 = 2√13/13