49 баллов,решительно пример срочно 1+cosx+√3cos x/2=0. Created by CurlyWhite. algebra-ru

2=0...

Verified answer

$1+Cosx+\sqrt{3}Cos\frac{x}{2}=0\\\\2Cos^{2}\frac{x}{2}+\sqrt{3}Cos\frac{x}{2}=0\\\\Cos\frac{x}{2}(2Cos\frac{x}{2}+\sqrt{3})=0\\\\1)Cos\frac{x}{2}=0\\\\\frac{x}{2}=\frac{\pi }{2}+\pi n,n\in z\\\\x_{1} =\pi + 2\pi n,n\n z\\\\2)2Cos\frac{x}{2} +\sqrt{3}=0$

$2Cos\frac{x}{2}=-\sqrt{3}\\\\Cos\frac{x}{2}=-\frac{\sqrt{3} }{2} \\\\\frac{x}{2}=\pm arcCos(-\frac{\sqrt{3} }{2})+2\pi n,n\n z\\\\\frac{x}{2} =\pm (\pi -arcCos\frac{\sqrt{3} }{2})+2\pi n,n\in z\\\\\frac{x}{2}=\pm (\pi-\frac{\pi }{6})+2\pi n,n\n z\\\\\frac{x}{2}=\pm \frac{5\pi }{6}+2\pi n,n\n z\\\\x_{2}=\pm \frac{5\pi }{3}+4\pi n,n\in z$

2 votes Thanks 1

Mihail001192

Verified answer

Решение приложено

================================================

1 votes Thanks 1

Answers & Comments

Verified answer

Verified answer

Решение приложено

najdite sluchai pleonazma i tavtologii ispravte oshibki i zapishite pravilnyj va439862f472418b337e61eb4bd2c10a91 95479

pomogite reshit srochno nuzhno47cb0e0194c652588fc334915204e12c 94423

dayu 49 balov pomogite pozhalujsta 4sin x 4cos x 10

dayu 40 ballovpomogite pzh sostavit shemu mostovogo vypryamitelya ispolzuya od

srochno nuzhno pomogite pozhalujstaproizvodnaya funkcii a y112x bsistema

otdayu poslednie baly proshu reshite pozhalujstasroki goryatvypolnit dejstviya s

reshitepozhalujstauzhe kak dva chasa nichego ne mogu ponyat i sdelat reshite pozhal

20 balov srochno nuzhnopomogite pozhalujsta

2x23x423

рекомендуемые вопросы

Helpful Links

Helpful Social