Question

√((x-2) ^2-(y) ^2) - √{(x+2)^2-(y)^2=5 represents ellips hyperbola parabola

Answer 1

x^2 + y^2 = 0, Circle x^2 + y^2 = r^2. Ellipse x ^2 / a^2 + y^2 / b^2 = 1, Ellipse x^2 / b^2 + y^2 / a^2 = 1, Hyperbola x^2 / a^2 - y^2 / b^2 = 1.