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If A=((alpha,-2),(-2,alpha))and |A|^3=12...

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

A

`pm1`

B

`pm2`

C

`pm3`

D

`pm4`

Text Solution

Verified by Experts

The correct Answer is:
C
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