Teaching DSSSB PGT Mock Test 2025 Mathematics Parabola, Ellipse and Hyperbola Ellipse

नाभि (0, ± 1) और प्रमुख अक्ष की लंबाई \(\sqrt{5}\) वाला दीर्घवृत्त है:

1
20 x2 + 4 y2 = 5
2
36 x2 + 20 y2​ = 45
3
4 x2 + 20 y2​ = 5
4
20 x2 + 36 y2​ = 45
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