UPSC NDA I 2017 Mathematics Solved Paper

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Question : 47 of 120

Marks: +1, -0

A=[

x+y	y
x	x−y

], B=[

3

−2

]‌ and ‌ C=[

4

−2

]‌. ‌
If AB=C, then what is A2 equal to?

[NDA I 2017]

[
4 8
−4 −16
]
[
4 −4
8 −16
]
[
−4 −8
4 12
]
[
−4 −8
8 12
]

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