1
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
If any point on an ellipse is (3sin$\alpha$, 5cos$\alpha$), then what is the eccentricity of the ellipse?
2
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
The foci of the ellipse 4x2 + 9y2 = 1 are at Q and R. If P(x, y) is any point on the ellipse, then what is PQ + PR equal to?
3
NDA Mathematics 21 April 2024
MCQ (Single Correct Answer)
+2.5
-0.83
What is the eccentricity of the ellipse if the angle between the straight lines joining the foci to an extremity of the minor axis is 90°?
4
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following for the next two (02) items that follow :
P(x, y) is any point on the ellipse x2 + 4y2 = 1. Let E, F be the foci of the ellipse.
What is PE + PF equal to ?
Questions Asked from Ellipse (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
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