0=2*sin(x)*cos(2x)+cos(x)

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


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

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

Reorder the terms for easier multiplication:
0 = 2 * 2ins * x * cos * x + cos(x)

Multiply 2 * 2
0 = 4ins * x * cos * x + cos(x)

Multiply ins * x
0 = 4insx * cos * x + cos(x)

Multiply insx * cos
0 = 4cinos2x * x + cos(x)

Multiply cinos2x * x
0 = 4cinos2x2 + cos(x)

Multiply cos * x
0 = 4cinos2x2 + cosx

Solving
0 = 4cinos2x2 + cosx

Solving for variable 'c'.

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

Add '-4cinos2x2' to each side of the equation.
0 + -4cinos2x2 = 4cinos2x2 + -4cinos2x2 + cosx
Remove the zero:
-4cinos2x2 = 4cinos2x2 + -4cinos2x2 + cosx

Combine like terms: 4cinos2x2 + -4cinos2x2 = 0
-4cinos2x2 = 0 + cosx
-4cinos2x2 = cosx

Add '-1cosx' to each side of the equation.
-4cinos2x2 + -1cosx = cosx + -1cosx

Combine like terms: cosx + -1cosx = 0
-4cinos2x2 + -1cosx = 0

Factor out the Greatest Common Factor (GCF), '-1cosx'.
-1cosx(4insx + 1) = 0

Ignore the factor -1.

Subproblem 1

Set the factor 'cosx' equal to zero and attempt to solve: Simplifying cosx = 0 Solving cosx = 0 Move all terms containing c to the left, all other terms to the right. Simplifying cosx = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(4insx + 1)' equal to zero and attempt to solve: Simplifying 4insx + 1 = 0 Reorder the terms: 1 + 4insx = 0 Solving 1 + 4insx = 0 Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 4insx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4insx = 0 + -1 4insx = 0 + -1 Combine like terms: 0 + -1 = -1 4insx = -1 Add '-4insx' to each side of the equation. 4insx + -4insx = -1 + -4insx Combine like terms: 4insx + -4insx = 0 0 = -1 + -4insx Simplifying 0 = -1 + -4insx The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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