defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Mathematics Circles Equation of Circle
If the curves \(\frac{x^2}{4}\) + y2 = 1 and \(\frac{x^2}{a^2}\) + y2 = 1 for suitable value of a cut on four concyclic points, the equation of the circle passing through these four points is –
1
x2 + y2 = 2
2
x2 + y2 = 1
3
x2 + y2 = 4
4
None of these