Mathematics · essential
Standard equation of circle with arbitrary centre for JEE
Circle, conic sections: A standard form of equations of a circle, the general form of the equation of a circle, its radius and centre
Formula
\((x-h)^2+(y-k)^2=r^2\)
Variables: \((h,k)\) is centre, \(r\) is radius.
Conditions: \(r>0\).
Centre-radius identification, tangent and chord problems.