If y= (1)/( 1+ x+x^2), then (dy)/(dx) is...

If `y= (1)/( 1+ x+x^2)`, then `(dy)/(dx)` is equal to
a)`y^(2) (1+ 2x)`b)`(-1 +2x)/( y^2)`c)`(1+2x)/(y^2)`d)`-y^(2) (1+2x)`

A

`y^(2) (1+ 2x)`

B

`(-1 +2x)/( y^2)`

C

`(1+2x)/(y^2)`

D

`-y^(2) (1+2x)`

Verified by Experts

The correct Answer is:

D

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