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The equation of the circle passing through the foci of the ellipse 16 x 2 + 9 y 2 = 1, and having centre at (0, 3) is -

1. x 2 + y 2 – 6y – 5 = 0
2. x 2 + y 2 – 6y + 5 = 0
3. x 2 + y 2 – 6y – 7 = 0
4. x 2 + y 2 – 6y + 7 = 0

Correct answer: x 2 + y 2 – 6y – 7 = 0

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