Find the equation of a circle with radius 3 units and centre (0, 0). The radius, \(r = 3\) and \(r^2 = 9\), so the equation of the circle is \(x^2 + y^2 = 9\). What is the radius of the circle given ...

Here, we are providing you the important concepts, formulae and some previous years solved questions related to Circle for JEE Main and JEE Advanced 2019. About 1-2 questions are being asked in the ...