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The roots of the equation x^(5)-40x^(4)+...

The roots of the equation `x^(5)-40x^(4)+ax^3+bx^2+cx+d=0` are in G.P. If sum of reciprocals of the roots is 10, then

A

`|c| = 40`

B

`|d| = 4`

C

`|d| = 32`

D

`|c| = 320`

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The correct Answer is:
A
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