For a complex number Z, if one root of t...

For a complex number Z, if one root of the equation `Z^(2)-aZ+a=0` is `(1+i)` and its other root is `alpha`, then the value of `(a)/(alpha^(4))` is equal to

A

4

B

`-(1)/(4)`

C

2

D

`-2`

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The correct Answer is:

B

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