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If A^(2)+mA+nI=O" and n "ne0,|A|ne0," th...

If `A^(2)+mA+nI=O" and n "ne0,|A|ne0," then "A^(-1)=`

A

`-(1)/(m)(A+nI)`

B

`-(1)/(n)(A+mI)`

C

`-(1)/(m)(I+mA)`

D

`A+mnI`

Text Solution

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The correct Answer is:
B
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MARVEL PUBLICATION-MATRICES-TEST YOUR GRASP
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