Home
О нас
Products
Services
Регистрация
Войти
Поиск
Ilyas0508
@Ilyas0508
October 2021
1
5
Report
Решите, пожалуйста. Алгебра 10 класс. sin^2 (3π/7)-2tg1*ctg1+cos^2(-3π/7)+sin^2(5π/2)
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
Bergo
sin^2 (3π/7)-2tg1*ctg1+cos^2(-3π/7)+sin^2(5π/2) = 0
1) sin^2 (3п/7)+cos^2(-3п/7)= 1
2)
-2tg1*ctg1=-2(sint*cost/cost*sint)=-2*1=- 2
3)sin^2(5п/2)= 1
4) 1-2+1=0
14 votes
Thanks 15
More Questions From This User
See All
Ilyas0508
July 2022 | 0 Ответы
(tgt-sint*cost)=2ctg^2t...
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 "2)..."
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 © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1) sin^2 (3п/7)+cos^2(-3п/7)= 1
2) -2tg1*ctg1=-2(sint*cost/cost*sint)=-2*1=- 2
3)sin^2(5п/2)= 1
4) 1-2+1=0