Q.

If the matrix A is such that  A [−1     2  3       1] =  [−4   1  7  7] then A =

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a

[112−3]

b

[−4177]

c

[1−123]

d

[−1123]

answer is C.

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Detailed Solution

A= [−4177][−1231]−1       = [−4177]  −17 [1−2−3−1]      = 17[−4177]   [−1231]      =  [1−123]
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