Sin(4x)=-sin(2x)

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Solution for Sin(4x)=-sin(2x) equation:


Simplifying
Sin(4x) = -1sin(2x)

Remove parenthesis around (4x)
inS * 4x = -1sin(2x)

Reorder the terms for easier multiplication:
4inS * x = -1sin(2x)

Multiply inS * x
4inxS = -1sin(2x)

Remove parenthesis around (2x)
4inxS = -1ins * 2x

Reorder the terms for easier multiplication:
4inxS = -1 * 2ins * x

Multiply -1 * 2
4inxS = -2ins * x

Multiply ins * x
4inxS = -2insx

Solving
4inxS = -2insx

Solving for variable 'i'.

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

Add '2insx' to each side of the equation.
2insx + 4inxS = -2insx + 2insx

Combine like terms: -2insx + 2insx = 0
2insx + 4inxS = 0

Factor out the Greatest Common Factor (GCF), '2inx'.
2inx(s + 2S) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'inx' equal to zero and attempt to solve: Simplifying inx = 0 Solving inx = 0 Move all terms containing i to the left, all other terms to the right. Simplifying inx = 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 '(s + 2S)' equal to zero and attempt to solve: Simplifying s + 2S = 0 Reorder the terms: 2S + s = 0 Solving 2S + s = 0 Move all terms containing i to the left, all other terms to the right. Add '-2S' to each side of the equation. 2S + -2S + s = 0 + -2S Combine like terms: 2S + -2S = 0 0 + s = 0 + -2S s = 0 + -2S Remove the zero: s = -2S Add '-1s' to each side of the equation. s + -1s = -2S + -1s Combine like terms: s + -1s = 0 0 = -2S + -1s Simplifying 0 = -2S + -1s 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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