$(1)\,\,\,\,\,$ ${(x-a)}^2 + y^2 = r^2$
$(2)\,\,\,\,\,$ $x^2 + y^2 -2ax + a^2 -r^2 = 0$
Learn proof of equation of a circle when centre lies on x-axis without touching $y$-axis.
$(1)\,\,\,\,\,$ $x^2 + {(y-b)}^2 = r^2$
$(1)\,\,\,\,\,$ $x^2 + y^2 -2by + b^2 -r^2 = 0$
Learn proof of equation of a circle when centre lies on y-axis without touching x-axis.
Learn how to solve easy to difficult mathematics problems of all topics in various methods with step by step process and also maths questions for practising.