If A=[a(ij)] is a matrix of order 2xx2, ...

If `A=[a_(ij)]` is a matrix of order `2xx2`, such that `|A|=-15` and `c_(ij)` represents co-factor of `a_(ij)`, then find `a_(21)c_(21)+a_(22)c_(22)`.

A

`-15`

B

15

C

0

D

1

Text Solution

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The correct Answer is:

A

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