Further Mathematics
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Coordinate geometry instrument 04
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/ 08
01
Foci
02
Sum rule
03
Ellipse
04
Difference
05
Predict
06
Generate
07
Reflect
08
Freeze
Fixed sum and fixed difference
Two equal-scale panels compare a fixed-sum ellipse with a fixed-difference hyperbola. One continuous animation generates the right hyperbola branch before symmetry supplies the left branch.