Home
О нас
Products
Services
Регистрация
Войти
Поиск
servicepack21
@servicepack21
August 2022
1
28
Report
Подробное решение
4cos^2x-8 sin x+1=0
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
kirichekov
Verified answer
4cos²x-8sinx+1=0
4*(1-sin²x)-8sinx+1=0
4sin²x+8sinx-5=0
замена переменных: sinx=t, t∈[-1;1]
4t²+8t-5=0. D=144. t₁=-2,5. -2,5∉[-1;1] посторонний корень
t₂=1/2
обратная замена:
sinx=1/2. x=(-1)^n *arcsin(1/2)+πn, n∈Z
x=(-1)^n*(π/6)+πn, n∈Z
5 votes
Thanks 6
More Questions From This User
See All
servicepack21
August 2022 | 0 Ответы
molyu vas o pomoshi vopros zhizni i smerti
Answer
servicepack21
August 2022 | 0 Ответы
pomogite reshit pozhalujsta 2 uravneniya 60 ballov
Answer
servicepack21
August 2022 | 0 Ответы
(3sinx+4)=2...
Answer
servicepack21
August 2022 | 0 Ответы
logarifmy 2 primera 30 ballov
Answer
servicepack21
August 2022 | 0 Ответы
partizip i partizip ii reshit raskryvaya skobki i perevesti 40 ballov
Answer
servicepack21
August 2022 | 0 Ответы
reshite zadachu 5 podrobno
Answer
servicepack21
August 2022 | 0 Ответы
3...
Answer
servicepack21
August 2022 | 0 Ответы
reshite ochen podrobnob5affdb01c03979a0fe990f518d67764 99231
Answer
servicepack21
August 2022 | 0 Ответы
reshite odno uravnenie tolko ochen ochen podrobno 3sin2xcos2xcos2x
Answer
servicepack21
August 2022 | 0 Ответы
sin2xcos3x-sin3xcos2x=1...
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 "Подробное решение 4cos^2x-8 sin x+1=0..."
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
4cos²x-8sinx+1=04*(1-sin²x)-8sinx+1=0
4sin²x+8sinx-5=0
замена переменных: sinx=t, t∈[-1;1]
4t²+8t-5=0. D=144. t₁=-2,5. -2,5∉[-1;1] посторонний корень
t₂=1/2
обратная замена:
sinx=1/2. x=(-1)^n *arcsin(1/2)+πn, n∈Z
x=(-1)^n*(π/6)+πn, n∈Z