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UPSC NDA Math Model Paper 4

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Question : 64

Total: 120

If 3A+4B′=[

7	−10	17
0	6	31

] and 2B−3A′=[

−1	18
4	0
−5	−7

] then B=?

[
1 3
−1 1
2 4
]
[
1 −3
−1 1
2 4
]
[
−1 −18
4 −16
−5 −7
]
[
1 3
−1 1
2 −4
]

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