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Sin3xsinx=-1?

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Sin3xsinx=-1? Find answers now! No. 1 Questions & Answers Place. More questions about Beauty & Style
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Positive: 57 %
Find right answers right now! Sin3xsinx=-1? More questions about Beauty & Style, Fashion & Accessories
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Positive: 54 %

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1: Решение см. во вложении. Случайное упражнение: Английский язык: Упражнение 6 ...
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Positive: 57 %
Cos3xcosx+sin3xsinx=-1/2 cos(3x-x) = - 1/2 cos2x= -1/2 2x= (2k+1)·π +/-π/3 ; k∈Z x= (2k+1)·π/2 +/-π/6
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Positive: 52 %
Помогите с уравнением. Прошу помочь кто может ((( Решите уравнение: cos3XcosX-sin3XsinX=1
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Positive: 38 %
2006-04-25 求证:cos3xcosx+sin^22x=sin3xsinx... 1; 2012-08-17 cos^22x+sin^22x=1吗? 2009-06-19 求函数 y=sin3x*sin^3x+cos3xcos^x/ ...
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Positive: 15 %

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