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If y = (x^(4)-x^(2)+1)/(x^(2)+sqrt(3)x+...

If `y = (x^(4)-x^(2)+1)/(x^(2)+sqrt(3)x+1)` and `(dy)/(dx)=ax+b` , then a - b = ?

A

`cot((pi)/(12))`

B

`cot((5pi)/(12))`

C

`tan((5pi)/(12))`

D

`tan((5pi)/(8))`

Text Solution

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The correct Answer is:
A, C
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Knowledge Check

  • If y=f(x^(2)) and f'(x)=sqrt(3x^(2)+1) then the value of (dy)/(dx) at x=2 is -

    A
    `4sqrt(13)`
    B
    `2sqrt(13)`
    C
    28
    D
    14

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