4cos^2(x)-5cos^2(x)+1=0

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Solution for 4cos^2(x)-5cos^2(x)+1=0 equation:


Simplifying
4cos2(x) + -5cos2(x) + 1 = 0

Multiply cos2 * x
4cos2x + -5cos2(x) + 1 = 0

Multiply cos2 * x
4cos2x + -5cos2x + 1 = 0

Reorder the terms:
1 + 4cos2x + -5cos2x = 0

Combine like terms: 4cos2x + -5cos2x = -1cos2x
1 + -1cos2x = 0

Solving
1 + -1cos2x = 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 + -1 + -1cos2x = 0 + -1

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

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

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

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

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