cos^2(c)+2cos(c)+1=0

Solution for cos^2(c)+2cos(c)+1=0 equation:

Simplifying
cos2(c) + 2cos(c) + 1 = 0

Multiply cos2 * c
c2os2 + 2cos(c) + 1 = 0

Multiply cos * c
c2os2 + 2c2os + 1 = 0

Reorder the terms:
1 + 2c2os + c2os2 = 0

Solving
1 + 2c2os + c2os2 = 0

Solving for variable 'c'.

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

Add '-1' to each side of the equation.
1 + 2c2os + -1 + c2os2 = 0 + -1

Reorder the terms:
1 + -1 + 2c2os + c2os2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2c2os + c2os2 = 0 + -1
2c2os + c2os2 = 0 + -1

Combine like terms: 0 + -1 = -1
2c2os + c2os2 = -1

Reorder the terms:
1 + 2c2os + c2os2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + 2c2os + c2os2 = 0

The solution to this equation could not be determined.