4sin^2x-4cosx-1=0

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

Simplifying
4sin2x + -4cosx + -1 = 0

Reorder the terms:
-1 + -4cosx + 4in2sx = 0

Solving
-1 + -4cosx + 4in2sx = 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 + -4cosx + 1 + 4in2sx = 0 + 1

Reorder the terms:
-1 + 1 + -4cosx + 4in2sx = 0 + 1

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

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

Add '-4in2sx' to each side of the equation.
-4cosx + 4in2sx + -4in2sx = 1 + -4in2sx

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

Divide each side by '-4osx'.
c = -0.25o-1s-1x-1 + in2o-1

Simplifying
c = -0.25o-1s-1x-1 + in2o-1

Reorder the terms:
c = in2o-1 + -0.25o-1s-1x-1