Y=x(cos(3x))

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Solution for Y=x(cos(3x)) equation: 


Simplifying
Y = x(cos(3x))

Remove parenthesis around (3x)
Y = x(cos * 3x)

Reorder the terms for easier multiplication:
Y = x(3cos * x)

Multiply cos * x
Y = x(3cosx)

Remove parenthesis around (3cosx)
Y = x * 3cosx

Reorder the terms for easier multiplication:
Y = 3x * cosx

Multiply x * cosx
Y = 3cosx2

Solving
Y = 3cosx2

Solving for variable 'Y'.

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

Simplifying
Y = 3cosx2

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