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If A=({:(a,2),(2,a):}) and |A|^(3)=-125,...

If `A=({:(a,2),(2,a):})` and `|A|^(3)=-125`, then `a` equals

A

`+-i`

B

`+-2`

C

`+-3`

D

`+-4`

Text Solution

Verified by Experts

The correct Answer is:
B
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ACCURATE PUBLICATION-DETERMINANTS-Type-I (Multiple choice questions)
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  3. If A=({:(a,2),(2,a):}) and |A|^(3)=-125, then a equals

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