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If the cubic equation x^(3)-ax^(2)+ax-1=...

If the cubic equation `x^(3)-ax^(2)+ax-1=0` is identical with the cubic equation whose roots are the squares of the roots of the given cubic equation, then the non-zero real value of 'a' is

A

`1/2`

B

2

C

3

D

`7/2`

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The correct Answer is:
C
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