Home
О нас
Products
Services
Регистрация
Войти
Поиск
justdanceandsing
@justdanceandsing
July 2022
1
7
Report
1) sin 4x=sin 2x
2) sin 2x=cos^2 x
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
uekmyfhfp
1) 2 sin 2x cos 2x = sin 2x;
sin2x(2 cos2x -1)=0;
sin2x=0; ⇒2x= pik; x= pk/2; k-Z,
2 cos2x - 1 =0;
cos 2x= 1/2;
2x= + - pi/3 + 2pin;
x = + - pi/6 + pin; n-Z.
2) 2 sinxcosx=cos^2x
2 sinxcosx - cos^2x =0;
cosx(2 sinx - cosx)=0;
cosx=0;⇒x=pi/2 + pik; k-Z.
2 sinx - cos x=0;
2 sinx= cos x; / 2 cos x≠0;
tgx=1/2;
x= arctg1/2 + pin; n-Z
1 votes
Thanks 2
More Questions From This User
See All
justdanceandsing
August 2022 | 0 Ответы
ukazhite formuly vysshih oksidov i gidroksidov elementov alyuminijkalijselenmagn
Answer
justdanceandsing
June 2022 | 0 Ответы
vycherknite v chisle 23462141 tri cifry tak chtoby poluchivsheesya chislo delilos na
Answer
justdanceandsing
June 2022 | 0 Ответы
sokrashenie drobej i vychislenie pomogite reshit
Answer
justdanceandsing
November 2021 | 0 Ответы
vklyuchite nedostayushie slova v utverzhdeniya1v zigote imeetsya v vide nasled
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 "1) sin 4x=sin 2x 2) sin 2x=cos^2 x..."
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
sin2x(2 cos2x -1)=0;
sin2x=0; ⇒2x= pik; x= pk/2; k-Z,
2 cos2x - 1 =0;
cos 2x= 1/2;
2x= + - pi/3 + 2pin;
x = + - pi/6 + pin; n-Z.
2) 2 sinxcosx=cos^2x
2 sinxcosx - cos^2x =0;
cosx(2 sinx - cosx)=0;
cosx=0;⇒x=pi/2 + pik; k-Z.
2 sinx - cos x=0;
2 sinx= cos x; / 2 cos x≠0;
tgx=1/2;
x= arctg1/2 + pin; n-Z