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Poppii
@Poppii
August 2022
1
18
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Помогите,очень срочно,пожалуйста
[tex] sin^{2} x+ sin^{2} 2x=0[/tex]
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Лавруша14
Sin^2 x + sin^2 2x = 0
sin^2 x + 2sinxcosx = 0
sinx(sinx+2cosx)=0
1)Sinx=0
X=пn
2) sinx+2cosx=0 (:cosx)
Tgx+2=0
Tgx=-2
X=-arctg2+пn
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Answers & Comments
sin^2 x + 2sinxcosx = 0
sinx(sinx+2cosx)=0
1)Sinx=0
X=пn
2) sinx+2cosx=0 (:cosx)
Tgx+2=0
Tgx=-2
X=-arctg2+пn