-2Cos^2x+Sinx+1=0

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Solution for -2Cos^2x+Sinx+1=0 equation: 


Simplifying
-2Cos2x + Sinx + 1 = 0

Reorder the terms:
1 + inxS + -2os2xC = 0

Solving
1 + inxS + -2os2xC = 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 + inxS + -1 + -2os2xC = 0 + -1

Reorder the terms:
1 + -1 + inxS + -2os2xC = 0 + -1

Combine like terms: 1 + -1 = 0
0 + inxS + -2os2xC = 0 + -1
inxS + -2os2xC = 0 + -1

Combine like terms: 0 + -1 = -1
inxS + -2os2xC = -1

Add '2os2xC' to each side of the equation.
inxS + -2os2xC + 2os2xC = -1 + 2os2xC

Combine like terms: -2os2xC + 2os2xC = 0
inxS + 0 = -1 + 2os2xC
inxS = -1 + 2os2xC

Divide each side by 'nxS'.
i = -1n-1x-1S-1 + 2n-1os2CS-1

Simplifying
i = -1n-1x-1S-1 + 2n-1os2CS-1

Reorder the terms:
i = 2n-1os2CS-1 + -1n-1x-1S-1

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