y=.5cos(2X)

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Solution for y=.5cos(2X) equation: 


Simplifying
y = 0.5cos(2X)

Remove parenthesis around (2X)
y = 0.5cos * 2X

Reorder the terms for easier multiplication:
y = 0.5 * 2cos * X

Multiply 0.5 * 2
y = 1cos * X

Multiply cos * X
y = 1cosX

Solving
y = 1cosX

Solving for variable 'y'.

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

Simplifying
y = 1cosX

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