10 класс, физ-мат. ПОМОГИТЕ ПЛИЗ!! 4^(cos2x) + 4^(cos²x) =3...

Astronavtka @Astronavtka

May 2022 1 12 Report

10 класс, физ-мат. ПОМОГИТЕ ПЛИЗ!!
4^(cos2x) + 4^(cos²x) =3

Answers & Comments

Universalka

Verified answer

$4^{Cos2x}+4^{Cos^{2} x} =3\\\\4^{2Cos^{2}x-1 }+4^{Cos^{2}x } =3\\\\\frac{1}{4}* (4^{Cos^{2}x })^{2}+4^{Cos^{2}x }-3=0\\\\4^{Cos^{2}x }=m,m>0\\\\\frac{1}{4} m^{2}+m-3=0|*4\\\\m^{2}+4m-12=0\\\\m_{1}=2\\\\m_{2}=-6$

$Cos^{2}x=\frac{1}{2}\\\\1)Cosx=\frac{\sqrt{2} }{2}\\\\x=\pm\frac{\pi }{4}+2\pi n,n\in z\\\\2)Cosx=-\frac{\sqrt{2} }{2}\\\\x=\pm\frac{3\pi }{4}+2\pi n,n\in z$

1 votes Thanks 1

More Questions From This User See All

Astronavtka July 2022 | 0 Ответы

s kakoj skorostyu dvigalsya avtomobil esli posle rezkogo tormozheniya do polnoj o

Astronavtka July 2022 | 0 Ответы

razlozhit na mnozhiteli pozhalujsta srochno

Astronavtka July 2022 | 0 Ответы

tex]...

Astronavtka July 2022 | 0 Ответы

2006 4 a 2006

Astronavtka July 2022 | 0 Ответы

reshite uravnenie pliz x4 x 4xx10

Astronavtka July 2022 | 0 Ответы

pomogite srochno perevedite v passivnoe sostoyanie in 1891 she started studie

Astronavtka July 2022 | 0 Ответы

predlozheniya s odnorodnymi chlenami iz vojny i miref21e08cf7bedfc6985a567a2af1bf3b 3306

Astronavtka July 2022 | 0 Ответы

predlozheniya s odnorodnymi chlenami iz vojny i mir

Astronavtka July 2022 | 0 Ответы

fiz mat 10 klass pomogite pozhalujsta sosxcos320

Astronavtka July 2022 | 0 Ответы

pomogite pliz 6sinx2sin2x4cosx3

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.