Home
О нас
Products
Services
Регистрация
Войти
Поиск
kozhukhovamash
@kozhukhovamash
July 2022
1
5
Report
СРОЧНО!!!
Для острых углов α и β докажите тождество (1+tg^2 α)^2-1/(cos^4 α)+3cos^2 β+2sin^2 β=2+cos^2 β
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
m11m
Verified answer
(1+tg²α)² - 1/(cos⁴α) + 3cos²β + 2sin²β=
= (1/cos²α)² - 1/cos⁴α + 3cos²β + 2(1-cos²β)=
= 1/cos⁴α - 1/cos⁴α + 3cos²β + 2 - 2cos²β =
=2 + cos²β
2+cos²β = 2 + cos²β
Что и требовалось доказать.
8 votes
Thanks 17
kozhukhovamash
спасибо
More Questions From This User
See All
kozhukhovamash
August 2022 | 0 Ответы
x-8...
Answer
kozhukhovamash
August 2022 | 0 Ответы
x^2-9...
Answer
kozhukhovamash
August 2022 | 0 Ответы
pomogite perevesti tekstdf58b98c2d926981c12626d925fc81a3 57275
Answer
kozhukhovamash
August 2022 | 0 Ответы
x^2-9...
Answer
kozhukhovamash
August 2022 | 0 Ответы
x-8...
Answer
kozhukhovamash
August 2022 | 0 Ответы
sostavte nebolshoj rasskaz na svobodnuyu temu 5 6 predlozhenij vklyuchaya v nih vsta
Answer
kozhukhovamash
August 2022 | 0 Ответы
srochno pomogite dayu 80 balov sostavte nebolshoj rasskaz na svobodnuyu t
Answer
kozhukhovamash
August 2022 | 0 Ответы
srochno ochen11 reshite neravenstvo111 x2x 3lt0 x 4x30 x2 x
Answer
kozhukhovamash
August 2022 | 0 Ответы
7, b=0, c=1,2...
Answer
kozhukhovamash
July 2022 | 0 Ответы
drobnaya cherta855c33fafb89770ff867578557486728 16088
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 "(cos^4 α)+3cos^2 β+2sin^2 β=2+cos^2 β..."
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
(1+tg²α)² - 1/(cos⁴α) + 3cos²β + 2sin²β== (1/cos²α)² - 1/cos⁴α + 3cos²β + 2(1-cos²β)=
= 1/cos⁴α - 1/cos⁴α + 3cos²β + 2 - 2cos²β =
=2 + cos²β
2+cos²β = 2 + cos²β
Что и требовалось доказать.