y=-5cos^2(x)

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Solution for y=-5cos^2(x) equation: 


Simplifying
y = -5cos2(x)

Multiply cos2 * x
y = -5cos2x

Solving
y = -5cos2x

Solving for variable 'y'.

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

Simplifying
y = -5cos2x

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