0=3cos(x)

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Solution for 0=3cos(x) equation: 


Simplifying
0 = 3cos(x)

Multiply cos * x
0 = 3cosx

Solving
0 = 3cosx

Solving for variable 'c'.

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

Add '-3cosx' to each side of the equation.
0 + -3cosx = 3cosx + -3cosx
Remove the zero:
-3cosx = 3cosx + -3cosx

Combine like terms: 3cosx + -3cosx = 0
-3cosx = 0

Divide each side by '-3'.
cosx = 0

Simplifying
cosx = 0

The solution to this equation could not be determined.

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