2sin²x - √2 · sinx = 0
sinx · (2sinx - √2) = 0
1) sinx = 0; x₁ = πk (k∈Z)
2) 2sinx - √2 = 0
sinx = (√2)/2 x₂ = π/4 + 2πk (k∈Z)
x₃ = 3π/4 + 2πk (k∈Z)
ответ: x₁ = πk (k∈Z); x₂ = π/4 + 2πk (k∈Z); x₃ = 3π/4 + 2πk (k∈Z).
2sin²x - √2 · sinx = 0
sinx · (2sinx - √2) = 0
1) sinx = 0; x₁ = πk (k∈Z)
2) 2sinx - √2 = 0
sinx = (√2)/2 x₂ = π/4 + 2πk (k∈Z)
x₃ = 3π/4 + 2πk (k∈Z)
ответ: x₁ = πk (k∈Z); x₂ = π/4 + 2πk (k∈Z); x₃ = 3π/4 + 2πk (k∈Z).