Mathematics
Circle for JEE Main & Advanced — power of a point and coaxial systems
How circle results shorten coordinate geometry on both papers.
On JEE Main
Main tests tangent conditions, chord of contact, external and internal common tangents, and basic radical axis in single-correct MCQ format. Director circle and orthogonal circle ideas appear occasionally.
On JEE Advanced
Advanced uses multi-correct and integer formats combining circles with parabolas or ellipses: locus of intersection, common chord as the radical axis, and coaxial circle families. Parametric forms help for tangents from external points in integer-type problems.
How to practise
Practise Circle on PracticeJEE under Mathematics after straight lines so ideas connect.
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