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vivienza
@vivienza
July 2022
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Sin2x+sin4x=0. Сколько корней
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100275
Sin2x+sin4x=0.
2sin(2x+4x)/2*cos(2x-4x)/2=0
sin3xcosx=0
sin3x=0 3x=пk x=пk/3
cosx=0 x=п/2+пn
корней бесконечно много
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Answers & Comments
2sin(2x+4x)/2*cos(2x-4x)/2=0
sin3xcosx=0
sin3x=0 3x=пk x=пk/3
cosx=0 x=п/2+пn
корней бесконечно много