2cos^2x-4cosx=6-sin^2x

Solution for 2cos^2x-4cosx=6-sin^2x equation:

Simplifying
2cos2x + -4cosx = 6 + -1sin2x

Reorder the terms:
-4cosx + 2cos2x = 6 + -1sin2x

Solving
-4cosx + 2cos2x = 6 + -1in2sx

Solving for variable 'c'.

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

Reorder the terms:
-6 + -4cosx + 2cos2x + in2sx = 6 + -1in2sx + -6 + in2sx

Reorder the terms:
-6 + -4cosx + 2cos2x + in2sx = 6 + -6 + -1in2sx + in2sx

Combine like terms: 6 + -6 = 0
-6 + -4cosx + 2cos2x + in2sx = 0 + -1in2sx + in2sx
-6 + -4cosx + 2cos2x + in2sx = -1in2sx + in2sx

Combine like terms: -1in2sx + in2sx = 0
-6 + -4cosx + 2cos2x + in2sx = 0

The solution to this equation could not be determined.