sin(3x)+sin(9x)=sin(12x)

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Solution for sin(3x)+sin(9x)=sin(12x) equation:


Simplifying
sin(3x) + sin(9x) = sin(12x)

Remove parenthesis around (3x)
ins * 3x + sin(9x) = sin(12x)

Reorder the terms for easier multiplication:
3ins * x + sin(9x) = sin(12x)

Multiply ins * x
3insx + sin(9x) = sin(12x)

Remove parenthesis around (9x)
3insx + ins * 9x = sin(12x)

Reorder the terms for easier multiplication:
3insx + 9ins * x = sin(12x)

Multiply ins * x
3insx + 9insx = sin(12x)

Combine like terms: 3insx + 9insx = 12insx
12insx = sin(12x)

Remove parenthesis around (12x)
12insx = ins * 12x

Reorder the terms for easier multiplication:
12insx = 12ins * x

Multiply ins * x
12insx = 12insx

Add '-12insx' to each side of the equation.
12insx + -12insx = 12insx + -12insx

Combine like terms: 12insx + -12insx = 0
0 = 12insx + -12insx

Combine like terms: 12insx + -12insx = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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