4cos(2x)=8sin(x)cos(x)

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Solution for 4cos(2x)=8sin(x)cos(x) equation:


Simplifying
4cos(2x) = 8sin(x) * cos(x)

Remove parenthesis around (2x)
4cos * 2x = 8sin(x) * cos(x)

Reorder the terms for easier multiplication:
4 * 2cos * x = 8sin(x) * cos(x)

Multiply 4 * 2
8cos * x = 8sin(x) * cos(x)

Multiply cos * x
8cosx = 8sin(x) * cos(x)

Multiply ins * x
8cosx = 8insx * cos * x

Multiply insx * cos
8cosx = 8cinos2x * x

Multiply cinos2x * x
8cosx = 8cinos2x2

Solving
8cosx = 8cinos2x2

Solving for variable 'c'.

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

Add '-8cinos2x2' to each side of the equation.
-8cinos2x2 + 8cosx = 8cinos2x2 + -8cinos2x2

Combine like terms: 8cinos2x2 + -8cinos2x2 = 0
-8cinos2x2 + 8cosx = 0

Factor out the Greatest Common Factor (GCF), '8cosx'.
8cosx(-1insx + 1) = 0

Ignore the factor 8.

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 '(-1insx + 1)' equal to zero and attempt to solve: Simplifying -1insx + 1 = 0 Reorder the terms: 1 + -1insx = 0 Solving 1 + -1insx = 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 + -1insx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1insx = 0 + -1 -1insx = 0 + -1 Combine like terms: 0 + -1 = -1 -1insx = -1 Add 'insx' to each side of the equation. -1insx + insx = -1 + insx Combine like terms: -1insx + insx = 0 0 = -1 + insx Simplifying 0 = -1 + insx 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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