Let y=(x^(8)+x^(4)+1)/(x^(4)+x^(2)+1)."I...

Let `y=(x^(8)+x^(4)+1)/(x^(4)+x^(2)+1)."If"(dy)/(dx)=ax^(3)+bx.` Then,

A

`(4,2)`

B

`(4,-2)`

C

`(-2,4)`

D

`(-2,-4)

Verified by Experts

The correct Answer is:

B

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