2sin^2x+4sinx+-1=0

Solution for 2sin^2x+4sinx+-1=0 equation:

Simplifying
2sin2x + 4sinx + -1 = 0

Reorder the terms:
-1 + 4insx + 2in2sx = 0

Solving
-1 + 4insx + 2in2sx = 0

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 4insx + 1 + 2in2sx = 0 + 1

Reorder the terms:
-1 + 1 + 4insx + 2in2sx = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 4insx + 2in2sx = 0 + 1
4insx + 2in2sx = 0 + 1

Combine like terms: 0 + 1 = 1
4insx + 2in2sx = 1

Reorder the terms:
-1 + 4insx + 2in2sx = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + 4insx + 2in2sx = 0

The solution to this equation could not be determined.