AP ICET 25 July 2022 Shift 1 Solved Paper

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Question : 74 of 200

Marks: +1, -0

For

x, y ∈ ℝ

, define

x * y=x+y+x y

and

x β y=\;{x+y}/{x-y}

, then

(7 β 5) *(13 β 11)=

$18$
$72$
$90$
$112$

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