sin(2x)cosx-cos(2x)sinx=0

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


Simplifying
sin(2x) * cosx + -1cos(2x) * sinx = 0

Remove parenthesis around (2x)
ins * 2x * cosx + -1cos(2x) * sinx = 0

Reorder the terms for easier multiplication:
2ins * x * cosx + -1cos(2x) * sinx = 0

Multiply ins * x
2insx * cosx + -1cos(2x) * sinx = 0

Multiply insx * cosx
2cinos2x2 + -1cos(2x) * sinx = 0

Remove parenthesis around (2x)
2cinos2x2 + -1cos * 2x * sinx = 0

Reorder the terms for easier multiplication:
2cinos2x2 + -1 * 2cos * x * insx = 0

Multiply -1 * 2
2cinos2x2 + -2cos * x * insx = 0

Multiply cos * x
2cinos2x2 + -2cosx * insx = 0

Multiply cosx * insx
2cinos2x2 + -2cinos2x2 = 0

Combine like terms: 2cinos2x2 + -2cinos2x2 = 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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