Предмет: Алгебра, автор: tazhirov1999

sin3x+sinx=0 нужно срочно решение уравнения

Ответы

Автор ответа: Аноним

sin3x + sinx = 0
2sin 2x * cos x = 0
sin2x = 0
2x = πk,k ∈ Z
x = πk/2, k ∈ Z

cos x = 0
x = π/2 + πn,n ∈ Z

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