cos^2A-1.7cosA+0.72=0

Solution for cos^2A-1.7cosA+0.72=0 equation:

Simplifying
cos2A + -1.7cosA + 0.72 = 0

Reorder the terms:
0.72 + -1.7cosA + cos2A = 0

Solving
0.72 + -1.7cosA + cos2A = 0

Solving for variable 'c'.

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

Add '-0.72' to each side of the equation.
0.72 + -1.7cosA + -0.72 + cos2A = 0 + -0.72

Reorder the terms:
0.72 + -0.72 + -1.7cosA + cos2A = 0 + -0.72

Combine like terms: 0.72 + -0.72 = 0.00
0.00 + -1.7cosA + cos2A = 0 + -0.72
-1.7cosA + cos2A = 0 + -0.72

Combine like terms: 0 + -0.72 = -0.72
-1.7cosA + cos2A = -0.72

Reorder the terms:
0.72 + -1.7cosA + cos2A = -0.72 + 0.72

Combine like terms: -0.72 + 0.72 = 0.00
0.72 + -1.7cosA + cos2A = 0.00

The solution to this equation could not be determined.