Автор - Barsa155

sin^2x=12 Решите срочно!!!!!!!!!!!!!!!!!!!!!!!!!

Ответ

Автор - kolobok1431
sin²x = 1/2 
sin²x - 1/2 = 0 
sin²x - (√2/2)² = 0 
(sin x - √2/2) * (sin x + √2/2) = 0 
1.
sin x - 
√2/2 = 0 
sin x = √2/2
x =  (-1)^{k  frac{ pi }{4}  pi
2. 
sin x + √2/2 = 0 
sin x = - √2/2
x =  (-1)^{k+1  frac{ pi }{4}  pi
Ответ: 
x =  (-1)^{k  frac{ pi }{4}  pi k  и 
           x =  (-1)^{k  frac{ pi }{4}  pi

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