Same chapter3 marksDifficulty: Medium
Define a conic section in terms of focus, directrix and eccentricity, and state the value of the eccentricity for each type.
Conic Sections
3 marksDifficulty: Medium
For the ellipse x2/25 + y2/16 = 1, find the eccentricity and the coordinates of the foci.
Original Khojo Papers practice question — not from a past board paper.
Answer
Eccentricity 3/5 and foci (±3, 0)
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Here a = 5 and b = 4, so e = √(1 − b2/a2) = √(1 − 16/25) = 3/5 and the foci are at (±ae, 0) = (±3, 0).
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Sets