cos(x)-2sin(2x)=0

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Solution for cos(x)-2sin(2x)=0 equation:


Simplifying
cos(x) + -2sin(2x) = 0

Multiply cos * x
cosx + -2sin(2x) = 0

Remove parenthesis around (2x)
cosx + -2ins * 2x = 0

Reorder the terms for easier multiplication:
cosx + -2 * 2ins * x = 0

Multiply -2 * 2
cosx + -4ins * x = 0

Multiply ins * x
cosx + -4insx = 0

Solving
cosx + -4insx = 0

Solving for variable 'c'.

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

Add '4insx' to each side of the equation.
cosx + -4insx + 4insx = 0 + 4insx

Combine like terms: -4insx + 4insx = 0
cosx + 0 = 0 + 4insx
cosx = 0 + 4insx
Remove the zero:
cosx = 4insx

Divide each side by 'osx'.
c = 4ino-1

Simplifying
c = 4ino-1

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