JEE Main 2019 — Math solution | Fundamenthol

JEE Main2019Math

Q.

Let O(0, 0) and A(0, 1) be two fixed points. Then the locus of a point P such that the perimeter of $Δ$ AOP is 4, is :

A
$8 x^{2} - 9 y^{2} + 9 y = 18$
B
$9 x^{2} + 8 y^{2} - 8 y = 16$
C
$9 x^{2} - 8 y^{2} + 8 y = 16$
D
$8 x^{2} + 9 y^{2} - 9 y = 18$

Solution

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