UPSC NDA I 2015 Mathematics Solved Paper

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Question : 18 of 120

Marks: +1, -0

If

X=[

3	−4
1	−1

],B=[

5	2
−2	1

]

and A=[

p	q
r	s

] satisfy the equation AX = B then matrix A is equal to

[NDA I 2015]

[
−7 26
1 −5
]
[
7 26
4 17
]
[
−7 −4
26 13
]
[
−7 26
−6 23
]

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