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ganina111
@ganina111
July 2022
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помогите решить,пожалуйста: 2sinxcosx+4cos=0
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xERISx
Verified answer
2sinx cosx + 4cosx = 0
2cosx (sinx + 2) = 0
1) cosx = 0
2) sinx + 2 = 0
sin x = -2
Уравнение решений не имеет, т.к. -1 ≤ sinx ≤ 1
Ответ:
, n ∈ Z
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Answers & Comments
Verified answer
2sinx cosx + 4cosx = 02cosx (sinx + 2) = 0
1) cosx = 0
2) sinx + 2 = 0
sin x = -2
Уравнение решений не имеет, т.к. -1 ≤ sinx ≤ 1
Ответ: , n ∈ Z