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Автор - bazylbekzhasmin

& sin (2x-П/4)+1=0
7​

Ответ

Автор - nikebod313

sin left (2x - dfrac{pi}{4} right)+ 1 = 0

sin left (2x - dfrac{pi}{4} right) = -1

2x - dfrac{pi}{4} = -dfrac{pi}{2} + 2pi n,  n in mathbb{Z}

2x= dfrac{pi}{4} - dfrac{pi}{2} + 2pi n,  n in mathbb{Z}

2x = -dfrac{pi}{4} + 2pi n,  n in mathbb{Z}    | : 2

x = -dfrac{pi}{8} + pi n,  n in mathbb{Z}

Ответ: x = -dfrac{pi}{8} + pi n,  n in mathbb{Z}

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