Question

решите уравнение 2sin4x=-1

Answer 1

2Sin4x =- 1
Sin4x = -1/2
4x =(- 1)ⁿarcSin(-1/2) + πn, n ∈ z
4x = (- 1)ⁿ⁺¹ π/6 +πn, n ∈ z
x = (- 1)ⁿ⁺¹ π/24 + πn/4, n ∈ z