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UPSC NDA II 2023 Mathematics Solved Paper

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Consider the following for the next two (02) items that follow :

A parabola passes through

(1,2)

and satisfies the differential equation

\;\frac{dy}{dx}=\;\frac{2y}{x}, x>0, y>0

.

[NDA II 2023]

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Question : 51 of 120

Marks: +1, -0

What is the directrix of the parabola?

$y=-\;\frac{1}{8}$
$y=\;\frac{1}{8}$
$x=-\;\frac{1}{8}$
$x=\;\frac{1}{8}$

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