F(X)=sin(3x)-2cos(3x)

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Solution for F(X)=sin(3x)-2cos(3x) equation: 


Simplifying
F(X) = sin(3x) + -2cos(3x)

Multiply F * X
FX = sin(3x) + -2cos(3x)

Remove parenthesis around (3x)
FX = ins * 3x + -2cos(3x)

Reorder the terms for easier multiplication:
FX = 3ins * x + -2cos(3x)

Multiply ins * x
FX = 3insx + -2cos(3x)

Remove parenthesis around (3x)
FX = 3insx + -2cos * 3x

Reorder the terms for easier multiplication:
FX = 3insx + -2 * 3cos * x

Multiply -2 * 3
FX = 3insx + -6cos * x

Multiply cos * x
FX = 3insx + -6cosx

Reorder the terms:
FX = -6cosx + 3insx

Solving
FX = -6cosx + 3insx

Solving for variable 'F'.

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

Divide each side by 'X'.
F = -6cosxX-1 + 3insxX-1

Simplifying
F = -6cosxX-1 + 3insxX-1

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