sin(7x)-sinx=cos(4x)

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Solution for sin(7x)-sinx=cos(4x) equation:


Simplifying
sin(7x) + -1sinx = cos(4x)

Remove parenthesis around (7x)
ins * 7x + -1sinx = cos(4x)

Reorder the terms for easier multiplication:
7ins * x + -1sinx = cos(4x)

Multiply ins * x
7insx + -1sinx = cos(4x)

Combine like terms: 7insx + -1insx = 6insx
6insx = cos(4x)

Remove parenthesis around (4x)
6insx = cos * 4x

Reorder the terms for easier multiplication:
6insx = 4cos * x

Multiply cos * x
6insx = 4cosx

Solving
6insx = 4cosx

Solving for variable 'i'.

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

Divide each side by '6nsx'.
i = 0.6666666667cn-1o

Simplifying
i = 0.6666666667cn-1o

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