SRMJEE 2019 Paper with key

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Question : 79 of 140

Marks: +1, -0

If A+B=(

2	−4
4	0

) and 3B=(

−9	6
3	12

) then A+4B is

(
−7 2
1 12
)
(
11 10
7 12
)
(
−11 −10
7 12
)
(
−7 2
7 12
)

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