An arbitrary point B on the unit circle is reflected in the y-axis to give B’. D is the intersection of BC and AB’. Prove it lies on the red hyperbola.
Puzzle creator: Matthew Arcus.
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Solution
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A hyperbolic style
2 replies on “A hyperbolic style”
Here’s a neat way to derive the equation of the hyperbola:
This is with C as centre and the x-axis going out to the left.