2sinxcosx - это sin2x
Получаем:
sin2x = 1
2x = n/2 + 2nk,k€Z | :2
x = n/4 + nk, k€Z
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2sinxcosx - это sin2x
Получаем:
sin2x = 1
2x = n/2 + 2nk,k€Z | :2
x = n/4 + nk, k€Z