2]...

karinagav1299 @karinagav1299

July 2022 1 8 Report

2sin^2 x-sin2x+sinx=cosx на отрезке [0;3п/2]

Answers & Comments

Elipswed 2sin^2x-sin2x+sinx-cosx=0
2sin^2x-2sinx*cosx+sinx-cosx=0
-2sinx*cosx-cosx+2sin^2x+sinx=0
-cosx(2sinx+1)+sinx(2sinx+1)=0
(2sinx+1)(-cosx+sinx)=0
1) 2sinx+1=0
2sinx=-1
sinx=-1/2
x=-π/6+2πn, n∈Z
x=-5π/6+2πn, n∈Z
2) sinx=cosx/:cosx≠0
sinx/cosx=1
tgx=1
x=π/4+πk, k∈Z

4 votes Thanks 3

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

pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513

sarvinozwakirjanova August 2022 | 0 Ответы

pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631

Helpful Links

Политика конфиденциальности

Правила и условия

Контакты

Helpful Social

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.