y=cos(2pix)

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Solution for y=cos(2pix) equation: 


Simplifying
y = cos(2pix)

Remove parenthesis around (2ipx)
y = cos * 2ipx

Reorder the terms for easier multiplication:
y = 2cos * ipx

Multiply cos * ipx
y = 2ciopsx

Solving
y = 2ciopsx

Solving for variable 'y'.

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

Simplifying
y = 2ciopsx

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