(2x)/(x^(2)+1)^(2)>0?

2 Answers
Apr 25, 2018

The answer x>0

Explanation:

(2x)/(x^2+1)^2>0

(2x)/(x^2+1)^2>0/1

2x>0

x>0

Apr 25, 2018

It will be >0 if x>0, and viceversa

Explanation:

(x^2 + 1 )^2 , always > 0

So, if

x>0 ....
Expression > 0

x<0 ....
Expression < 0