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Let A=[(1,2),(3,4)], [a(ij)] where I,j =...

Let `A=[(1,2),(3,4)]`, `[a_(ij)]` where I,j =1,2. If its inverse matrix is `[b_(q)]`, then what is `b_(22)` equal to ?

A

A. `-2`

B

B. 1

C

C. `(1)/(3)`

D

D. `-(1)/(2)`

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