AAI ATC Junior Executive 21 Feb 2023 Shift 2 Paper

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Question : 115 of 120

Marks: +1, -0

If

x = a (t + \;{1}/{t})

and

y = a (t−\;{1}/{t})

, then

\;{dx}/{dy}

is:

$\;{x}/{y}$
$\;{y}/{x}$
$\;{1}/{x}$
1

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