This article talks about important concepts, formulae and some previous year solved questions related to chapter Circle for JEE Main and JEE Advanced entrance examination 2018. Students always find 1-2 questions in the question paper from this topic in the examination.
Every important topics related to chapter Circle like definition of circle, general equation of circle, equation of circle with the end points of diameter, equation of tangent to a circle, equation of normal to a circle, equation of a circle passing through a line and touching a line, length of tangent from an external point, equation of chord, orthogonal circles etc are included in this article.
Some previous year solved questions helps students in understanding the concepts of this chapter. It will also help JEE aspirants to get familiar with the difficulty level of the previous year papers.
The concept given in this article is in concise form and can be used for revision before the examination.
Some previous year solved questions are given below: