JEE Main 2020 — Ellipse Question with Solution
From: JEE Main 2020 (Online) 5th September Morning Slot
Question
If the co-ordinates of two points A and B
are and respectively and
P is any point on the conic, 9x2 + 16y2 = 144, then PA + PB is equal to :
are and respectively and
P is any point on the conic, 9x2 + 16y2 = 144, then PA + PB is equal to :
Choose an option
Show full solutionCorrect option: A
Correct answer
A8
Step-by-step explanation
9x2 + 16y2 = 144
a = 4; b = 3;
Now e =
A and B are foci
PA + PB = 2a = 2 × 4 = 8
a = 4; b = 3;
Now e =
A and B are foci
PA + PB = 2a = 2 × 4 = 8
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