Euclid's Muse

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Sinusoidal Tangent Mirrors

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Amanda Snodgrass



Look at a point on a sinusoidal curve (y=sin(x)) with a tangent line.
Then, look at a point on the negative of your sinusoidal curve (y=-sin(x)) that is a mirror image of your first point.
Then, notice that these mirror image points have mirror image tangent lines.

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