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If x=(1-t^2)/(1+t^2) and y=(2t)/(1+t^2) ...

If `x=(1-t^2)/(1+t^2)` and `y=(2t)/(1+t^2)` ,then `(dy)/(dx)=`

A

`(-y)/(x)`

B

`y/x`

C

`(-x)/(y)`

D

`x/y`

Text Solution

Verified by Experts

The correct Answer is:
C
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