# cosx-sin(2x)=0

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

Simplifying
cosx + -1sin(2x) = 0
Remove parenthesis around (2x)
cosx + -1ins * 2x = 0
Reorder the terms for easier multiplication:
cosx + -1 * 2ins * x = 0
Multiply -1 * 2
cosx + -2ins * x = 0
Multiply ins * x
cosx + -2insx = 0
Solving
cosx + -2insx = 0
Solving for variable 'c'.
Move all terms containing c to the left, all other terms to the right.
Add '2insx' to each side of the equation.
cosx + -2insx + 2insx = 0 + 2insx
Combine like terms: -2insx + 2insx = 0
cosx + 0 = 0 + 2insx
cosx = 0 + 2insx
Remove the zero:
cosx = 2insx
Divide each side by 'osx'.
c = 2ino-1
Simplifying
c = 2ino-1`