-2sin^2(x)-cos(x)+1.2=0

Solution for -2sin^2(x)-cos(x)+1.2=0 equation:

Simplifying
-2sin2(x) + -1cos(x) + 1.2 = 0

Multiply in2s * x
-2in2sx + -1cos(x) + 1.2 = 0

Multiply cos * x
-2in2sx + -1cosx + 1.2 = 0

Reorder the terms:
1.2 + -1cosx + -2in2sx = 0

Solving
1.2 + -1cosx + -2in2sx = 0

Solving for variable 'c'.

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

Add '-1.2' to each side of the equation.
1.2 + -1cosx + -1.2 + -2in2sx = 0 + -1.2

Reorder the terms:
1.2 + -1.2 + -1cosx + -2in2sx = 0 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -1cosx + -2in2sx = 0 + -1.2
-1cosx + -2in2sx = 0 + -1.2

Combine like terms: 0 + -1.2 = -1.2
-1cosx + -2in2sx = -1.2

Add '2in2sx' to each side of the equation.
-1cosx + -2in2sx + 2in2sx = -1.2 + 2in2sx

Combine like terms: -2in2sx + 2in2sx = 0
-1cosx + 0 = -1.2 + 2in2sx
-1cosx = -1.2 + 2in2sx

Divide each side by '-1osx'.
c = 1.2o-1s-1x-1 + -2in2o-1

Simplifying
c = 1.2o-1s-1x-1 + -2in2o-1

Reorder the terms:
c = -2in2o-1 + 1.2o-1s-1x-1