If , , are the roots of the equation x^3-px^2-r=0, then the value of (1+ ^2 )(1+ ^2 )(1+ ^2 ) is equal to

JEE Main Mathematics question

If are the roots of the equation , then the value of is equal to

Answer: (B)

Note , so the required product is with the roots. For : $=

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Question ID VK-008072