Home
О нас
Products
Services
Регистрация
Войти
Поиск
fb17
@fb17
August 2022
1
33
Report
Легко плз. Найдите корни уравнения 6sin²x-5cosx-5=0 на промежутке [3Π; 5П]
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
tseluyko58
Verified answer
6*(1-cos^2 x)-5cosx-5=0
-6cos^2 x-5cosx+1=0
6cos^2 x+5cos x-1=0
cos x=t, |t|<=1
6t^2+5t-1=0
t=1/6, t=-1
cos x=1/6, x=+-arccos1/6+2pin
cos x=-1, x=pi+2pin. x=3pi,5pi,+-arccos1/6+4pi
3 votes
Thanks 1
fb17
тут же нужно на промежутке
More Questions From This User
See All
fb17
August 2022 | 0 Ответы
x1 b uh h
Answer
fb17
August 2022 | 0 Ответы
h 1 b uh 4h
Answer
fb17
August 2022 | 0 Ответы
dokazhite chto funkciya fx5cosx 7x ubyvaet na vse chislovoj pryamoj
Answer
fb17
August 2022 | 0 Ответы
malenkoe issledovanie funkcii yx 3x4 nado najti promezhutki vozrastaniya i u
Answer
fb17
August 2022 | 0 Ответы
opredelite skolko reshenij imeet uravnenie pri razlichnyh znacheniyah peremennoj a
Answer
fb17
August 2022 | 0 Ответы
malenkaya zadachka po geometrii srochnyakom nado
Answer
fb17
August 2022 | 0 Ответы
pomogite sdelat pozhalujstaa93786d874beff9092a1ede58b112dac 35496
Answer
fb17
August 2022 | 0 Ответы
kto reshit tot molodec legko
Answer
fb17
August 2022 | 0 Ответы
legko pomogite najdite ordinatu vershiny paraboly
Answer
fb17
August 2022 | 0 Ответы
legko pridumajte vyskazyvanie kotoroe mozhet byt opisano formuloj fab ne
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 "Легко плз. Найдите корни уравнения 6sin²x-5cosx-5=0 на промежутке [3Π; 5П]..."
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
6*(1-cos^2 x)-5cosx-5=0-6cos^2 x-5cosx+1=0
6cos^2 x+5cos x-1=0
cos x=t, |t|<=1
6t^2+5t-1=0
t=1/6, t=-1
cos x=1/6, x=+-arccos1/6+2pin
cos x=-1, x=pi+2pin. x=3pi,5pi,+-arccos1/6+4pi