if y=x/(a+x/(b+x/(a+x/(b+...oo)))), then...

`if y=x/(a+x/(b+x/(a+x/(b+...oo))))`, `then (dy)/(dx)=`

A

`(-a)/(ab+2ay)`

B

`(-b)/(ab+2ay)`

C

`(a)/(ab+2by)`

D

`(b)/(ab+2ay)`

Verified by Experts

The correct Answer is:

D

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