cos(2x)+cos^2(x)=0 Решите уравнение. Created by gjycfxfcgnjkjj. algebra-ru

cos(2x)+cos^2(x)=0 Решите уравнение...

July 2022 1 12 Report

cos(2x)+cos^2(x)=0
Решите уравнение

Answers & Comments

MrSoys Cos2x=cos²x-sin²x
cos²x-sin²x+cos²x=0
2cos²x-sin²x=0
Делим на cos²x
2-tg²x=0
tg²x=2
$tgx= \sqrt{2}, tgx=- \sqrt{2}$
x=arctg $\sqrt{2}$ +πn, n∈Z или x=-arctg $\sqrt{2}$ +πm, m∈Z

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sin^2(x)-2sin(x)*cos(x)-3cos^2(x)+2=0...

sin2x 2cosx0reshite uravnenie

smb''!!!!!!!!!!!!!!!...

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podskazhite gde mozhno najti komiks ili chto libo podobnoe na proizvedenie chehov

radiolokacionnaya stanciya posylaet v nekotoruyu sredu elektromagnitnye volny dlino170cb90539c7a643f07b411fc880dce2 66798

pravila moej shkoly chto mozhno delat i chto nelzya delat ispolzuya to be allow

skolko trehznachnyh chisel mozhno sostavit iz cifr 1 2 4 5 6 esli cifry v zapisi

napisat po 5 predlozhenij s past simple i past continuous

uprazhneniya 1 raskrojte skobki upotreblyaya glagoly v past simple ili past conti

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