defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Parabola, Ellipse and Hyperbola Ellipse

Find the foci of the ellipse 4x2 + 9y2 + 16x + 18y – 11 = 0 ?

1
(- 3 ± √5, -2)
2
(- 2 ± √5, -1)
3
(- 2 ± √5, 1)
4
(2 ± √5, -1)
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