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The condition that the roots of x^(3)+ 3...

The condition that the roots of `x^(3)+ 3px^(2) + 3qx + r = 0 ` may be in A.P is

A

`2q^(3)+r^(2)=3pqr`

B

`2p^(3)+r=3pq`

C

`p^(3)r = q^(3)`

D

None

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The correct Answer is:
B
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