Home
О нас
Products
Services
Регистрация
Войти
Поиск
Andrey54rus
@Andrey54rus
July 2022
1
15
Report
cos2x+sin4x=sin^2x-cos^2x
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
DariosI
Verified answer
Cos2x+sin4x=-(cos^2x-sin^2x)
cos2x+2sin2x*cos2x=-cos2x
cos2x+2sin2x*cos2x+cos2x=0
2cos2x+2sin2x*cos2x=0
2cos2x(1+sin2x/cos2x)=0
2cos2x(1+tg2x)=0
cos2x=0
2x=π/2+π*n
1+tg2x=0
tg2x=-1
2x=-π/4+2π*n
x=-π/8+πn
x=π/4+πn/2
1 votes
Thanks 1
Andrey54rus
квадраты убираются ??
DariosI
Это формула двойного угла cos
Andrey54rus
А, блин, не увидел кое-что
More Questions From This User
See All
Andrey54rus
July 2022 | 0 Ответы
koren5x3x 1 2x1
Answer
Andrey54rus
July 2022 | 0 Ответы
opredelite ploshad kontura kotoryj nahoditsya perpendikulyarno liniyam indukcii v
Answer
Andrey54rus
July 2022 | 0 Ответы
pochemu pri vklyuchenii lampochki v set peremennogo toka ona gorit postoyanno a ne
Answer
Andrey54rus
July 2022 | 0 Ответы
s najdite cherez kakoj promezhutok vremeni beguny vstretyatsya snova kakoe rasstoya
Answer
Andrey54rus
July 2022 | 0 Ответы
opredelit kakoe iz chisel bolshe sin1gradusov sin4gradusov ili sin2gradu
Answer
Andrey54rus
July 2022 | 0 Ответы
ne znayu pojmete menya ili net no vot vopros pri peresechenii dvuh okruzhnostej t
Answer
Andrey54rus
July 2022 | 0 Ответы
s2 chemu raven impuls tela v moment vremeni t 2 cb31f164cb99d1f0d95520deaf12e1ceb 44345
Answer
Andrey54rus
July 2022 | 0 Ответы
chasy pokazyvayut 6 chasov cherez kakoe vremya sovmestyatsya chasovaya i minutnaya strelk
Answer
Andrey54rus
July 2022 | 0 Ответы
s v zaryazhennom pistolete pruzhina szhata na dx6 sm
Answer
Andrey54rus
July 2022 | 0 Ответы
koren5x23x 1 2x1
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 "cos2x+sin4x=sin^2x-cos^2x..."
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
Cos2x+sin4x=-(cos^2x-sin^2x)cos2x+2sin2x*cos2x=-cos2x
cos2x+2sin2x*cos2x+cos2x=0
2cos2x+2sin2x*cos2x=0
2cos2x(1+sin2x/cos2x)=0
2cos2x(1+tg2x)=0
cos2x=0
2x=π/2+π*n
1+tg2x=0
tg2x=-1
2x=-π/4+2π*n
x=-π/8+πn
x=π/4+πn/2