Mathematics · essential
Standard equation of circle with centre at origin 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
\(x^2+y^2=a^2\)
Variables: \(a\) is radius.
Conditions: \(a>0\).
Basic circle geometry, line-circle intersection, tangency.