arccos(sin 4П/5)=????????????. Created by Кариночка78. algebra-ru

5)=????????????...

Кариночка78 @Кариночка78

July 2022 1 14 Report

arccos(sin 4П/5)=????????????

Answers & Comments

NNNLLL54

Verified answer

$arccos (sin\frac{4\pi}{5})=arccos(sin(\pi -\frac{\pi}{5}))=arccos (sin(\frac{\pi }{5}))=\\\\=arccos(sin(\underbrace {\frac{\pi }{2}-\frac{3\pi}{10}}_{\pi /5}))=arccos(cos\frac{3\pi}{10})=\frac{3\pi}{10}\; ;\\\\\frac{3\pi}{10}\in \; 1\; chetverti$

4 votes Thanks 5

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

Answers & Comments

Verified answer

рекомендуемые вопросы

Helpful Links

Helpful Social