Cos(5x)-cos(9x)=0

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Solution for Cos(5x)-cos(9x)=0 equation:


Simplifying
Cos(5x) + -1cos(9x) = 0

Remove parenthesis around (5x)
osC * 5x + -1cos(9x) = 0

Reorder the terms for easier multiplication:
5osC * x + -1cos(9x) = 0

Multiply osC * x
5osxC + -1cos(9x) = 0

Remove parenthesis around (9x)
5osxC + -1cos * 9x = 0

Reorder the terms for easier multiplication:
5osxC + -1 * 9cos * x = 0

Multiply -1 * 9
5osxC + -9cos * x = 0

Multiply cos * x
5osxC + -9cosx = 0

Reorder the terms:
-9cosx + 5osxC = 0

Solving
-9cosx + 5osxC = 0

Solving for variable 'c'.

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

Add '-5osxC' to each side of the equation.
-9cosx + 5osxC + -5osxC = 0 + -5osxC

Combine like terms: 5osxC + -5osxC = 0
-9cosx + 0 = 0 + -5osxC
-9cosx = 0 + -5osxC
Remove the zero:
-9cosx = -5osxC

Divide each side by '-9osx'.
c = 0.5555555556C

Simplifying
c = 0.5555555556C

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