Sin2x+1=0

Question

Sin2x+1=0

Answer 1

sin2x +1 =0

sin2x = -1

2x = -пи\2 +2пи*n( частный случай)

x = -пи\4 + пи*n

Answer 2

sin2x+1=0

x ∈ {пи*k-пи/4}, k ∈ Z