Home
О нас
Products
Services
Регистрация
Войти
Поиск
nika15s150798
@nika15s150798
August 2022
1
6
Report
Помогите решить, пожалуйста. Желательно с подробным решением!
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
Г)
sin(π-α) * ctg (3π/2 +α)
=
sinα*(-tgα)
= -1
tg(2π+α)*cos(π/2-α) tgα * sinα
sin(π-α)=-sin(-α)=sinα
cos(π/2-α)=-sin(-α)=sinα
tg(2π+α)=
sin(2π+α)
=
sinα
=tgα
cos(2π+α) cosα
ctg(3π/2+α)=ctg(π+π/2+α)=ctg(π/2+α)=
cos(π/2+α)
=
-sinα
=-tgα
sin(π/2+α) cosα
д) sin(450°+x) cos(540°+x) cos(990°-x)=cosx * (-cosx)*(-sinx)=cos²x sinx=
=0.19 * 0.9=0.171
sin(450°+x)=sin(360°+90°+x)=sin(90°+x)=cosx
cos(540°+x)=cos(360°+180°+x)=cos(180°+x)=-cosx
cos(990°-x)=cos(1080°-90°-x)=cos(6*360°+(-90°-x))=cos(-90°-x)=
cos(-(90°+x))=cos(90°+x)=-sinx.
sinx=0.9
cos²x=1-sin²x=1-(0.9)²=1-0.81=0.19
0 votes
Thanks 1
More Questions From This User
See All
nika15s150798
August 2022 | 0 Ответы
pomogite reshit integralypozhalujsta srochno
Answer
nika15s150798
August 2022 | 0 Ответы
srochnopomogite s proizvodnojs obyasneniyamipozhalujsta
Answer
nika15s150798
August 2022 | 0 Ответы
pomogite reshit pozhalujsta zhelatelno s podrobnym resheniemeef7edec390e0e08226ceca696b4486f 72330
Answer
nika15s150798
August 2022 | 0 Ответы
srochno pomogitepozhalujstaf4abc1dc7a826202805054a51c3faa62 93745
Answer
nika15s150798
August 2022 | 0 Ответы
srochnolyudihelp s podrobnym resheniem esli mozhno
Answer
nika15s150798
August 2022 | 0 Ответы
pomogite reshitpozhalujsta s podrobnym resheniem83bd23903d72cd24b120d34141630f36 49658
Answer
nika15s150798
August 2022 | 0 Ответы
pomogite zhelatelno s podrobnym resheniemaf517929bde6b69f1c8a381bc3c24d0f 15106
Answer
nika15s150798
August 2022 | 0 Ответы
srochno pomogitepozhalujsta7f816bbb2b14d708df07849ba9463455 81040
Answer
nika15s150798
August 2022 | 0 Ответы
pomogite reshit 7 pozhalujsta s podrobnym resheniem
Answer
nika15s150798
July 2022 | 0 Ответы
pomogite reshit pozhalujsta s podrobnym resheniemff8be9b1253ea12c8bec0f1ab4787eb3 20374
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 "Помогите решить, пожалуйста. Желательно с подробным решением!..."
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
tg(2π+α)*cos(π/2-α) tgα * sinα
sin(π-α)=-sin(-α)=sinα
cos(π/2-α)=-sin(-α)=sinα
tg(2π+α)=sin(2π+α)= sinα =tgα
cos(2π+α) cosα
ctg(3π/2+α)=ctg(π+π/2+α)=ctg(π/2+α)=cos(π/2+α)=-sinα =-tgα
sin(π/2+α) cosα
д) sin(450°+x) cos(540°+x) cos(990°-x)=cosx * (-cosx)*(-sinx)=cos²x sinx=
=0.19 * 0.9=0.171
sin(450°+x)=sin(360°+90°+x)=sin(90°+x)=cosx
cos(540°+x)=cos(360°+180°+x)=cos(180°+x)=-cosx
cos(990°-x)=cos(1080°-90°-x)=cos(6*360°+(-90°-x))=cos(-90°-x)=
cos(-(90°+x))=cos(90°+x)=-sinx.
sinx=0.9
cos²x=1-sin²x=1-(0.9)²=1-0.81=0.19