0.72=cos^2(x)

Solution for 0.72=cos^2(x) equation:

Simplifying
0.72 = cos2(x)

Multiply cos2 * x
0.72 = cos2x

Solving
0.72 = cos2x

Solving for variable 'c'.

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

Add '-1cos2x' to each side of the equation.
0.72 + -1cos2x = cos2x + -1cos2x

Combine like terms: cos2x + -1cos2x = 0
0.72 + -1cos2x = 0

Add '-0.72' to each side of the equation.
0.72 + -0.72 + -1cos2x = 0 + -0.72

Combine like terms: 0.72 + -0.72 = 0.00
0.00 + -1cos2x = 0 + -0.72
-1cos2x = 0 + -0.72

Combine like terms: 0 + -0.72 = -0.72
-1cos2x = -0.72

Divide each side by '-1os2x'.
c = 0.72o-1s-2x-1

Simplifying
c = 0.72o-1s-2x-1