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The function f(x)=1/(1+x^2) is decreasin...

The function `f(x)=1/(1+x^2)` is decreasing in the interval (i) `(-infty,-1)` (ii) `(-infty,0)` (iii) `(1,infty)` (iv) `(0,infty)`

A

`(-infty,-1]`

B

`(-infty,0]`

C

`[1,infty)`

D

`(0,infty)`

Text Solution

Verified by Experts

The correct Answer is:
D
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