Agniveer Vayu or IAF Group X 13 July 2021 Shift 1 Paper

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Question : 49 of 70

Marks: +1, -0

The value of ${|\table 1 , 1 , 1 ; 1 , 1 + x , 1 ; 1 , 1 , 1 + y ; |}$ is

x + y
x – y
xy
1 + x + y

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