4cos^2(x-[tex] \frac{ \pi }{6} [/tex]) - 3 = 0. Created by krokket. algebra-ru

или или n∈Z или k∈Z n∈Z или k∈Z n∈Z или k∈Z

tex]) - 3 = 0...

krokket @krokket

July 2022 1 23 Report

4cos^2(x-[tex] \frac{ \pi }{6} [/tex]) - 3 = 0

Answers & Comments

chamomile03

Verified answer

$4cos^2(x- \frac{ \pi }{6} )-3=0 \\ \\ (2cos(x- \frac{ \pi }{6}) )^2-( \sqrt{3})^2=0 \\ \\ (2cos(x- \frac{ \pi }{6})- \sqrt{3} )(2cos(x- \frac{ \pi }{6})+ \sqrt{3} )=0$

$2cos(x- \frac{ \pi }{6})- \sqrt{3}=0$ или $2cos(x- \frac{ \pi }{6})+ \sqrt{3}=0$

$cos(x- \frac{ \pi }{6})= \frac{ \sqrt{3} }{2}$ или $cos(x- \frac{ \pi }{6})= -\frac{ \sqrt{3} }{2}$

$x- \frac{ \pi }{6}=бarccos\frac{ \sqrt{3} }{2} +2 \pi n,$ n∈Z или $x- \frac{ \pi }{6}=бarccos(-\frac{ \sqrt{3} }{2}) +2 \pi k,$ k∈Z

$x- \frac{ \pi }{6} =б \frac{ \pi }{6}+2 \pi n,$ n∈Z или $x- \frac{ \pi }{6} =б \frac{5 \pi }{6}+2 \pi k,$ k∈Z

$x= б\frac{ \pi }{6}+ \frac{ \pi }{6}+2 \pi n,$ n∈Z или $x= б\frac{5 \pi }{6}+ \frac{ \pi }{6}+2 \pi k,$ k∈Z

2 votes Thanks 2

chetyre chisla yavlyayutsya posledovatelnymi chlenami arifmeticheskoj progressii summab7d87bb024567d4e9833eb98bde66c3b 59881

Answer

krokket July 2022 | 0 Ответы

Answers & Comments

Verified answer

tex]...

srochno molyu proshu pomogite v treugolnike abc ploshad kotorogo ravna 33

srochno najdite ploshad treugolnika abc esli abc4125m ugol b44 gradusa

chetyre chisla yavlyayutsya posledovatelnymi chlenami arifmeticheskoj progressii summab7d87bb024567d4e9833eb98bde66c3b 59881

vsegda li ravny smezhnye ugly

tex]...

tex sdelajte vyvod o vzaimnom raspolozhenii postroennyh grafikov

proshu pomogite s himiej legchajshee ionnoe uravnenie no ya ih sovsem ne ponimayu

pomogite ne ponimayu zadanie 6 8 9 v 6 na ris259 kakova vysota detali

srochno mega vopros pomogite umirayu s znso4zn znzncl zncl

рекомендуемые вопросы

Helpful Links

Helpful Social