MATSEC AM Pure Mathematics Complete Prep Course — Lesson 36: The circle: both general forms

Sarah Mitchell teaches the two equations of a circle for MATSEC Paper One. She moves between centre-radius form and the expanded form with two g x and two f y, reading the centre as minus g, minus f and the radius as the square root of g squared plus f squared minus c. She covers completing the square, the positivity condition, dividing through, the parametric point, three-point fitting and the diameter shortcut.

Lesson 36 of 158 in the MATSEC AM Pure Mathematics Complete Prep Course audio course from ExamPrepRise.

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