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prost1234
@prost1234
July 2022
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Чему равен sin4x, sin6x и sin8x?
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nKrynka
Решение
Используем формулу:
sin2x = 2sinx*cosx
1) sin4x = 2sin2x*сos2x
2) sin6x = 2sin3x*cos3x
3) sin8x = 2sin4x*cos4x
3 votes
Thanks 12
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Answers & Comments
Используем формулу:
sin2x = 2sinx*cosx
1) sin4x = 2sin2x*сos2x
2) sin6x = 2sin3x*cos3x
3) sin8x = 2sin4x*cos4x