" For what value(s) of "x" is the function "f(x)=(x)/(x^(2)+1)" decreasing."

The function f(x)=(x)/(x^(2)+1) decreasing, if

The function f(x) = x^(2) is decreasing in

For which values of x, the function f(x)=(x)/(x^(2)+1) is increasing and for which value of x, it is decreasing.

For which values of x, the function f(x)=(x)/(x^(2)+1) is increasing and for which values of x, it is decreasing.

The function f(x) =x^3(x-2)^2 decreases in

The function f(x) =(log x)/x decreases in

The function f(x)=x^(4)-2x^(3)+1 is decreasing for

The function f(x) = 1-x^(3)-x^(5) is decreasing for

For which values of x , the function f(x)=x/(x^2+1) is increasing and for which value of x , it is decreasing.

For which values of x , the function f(x)=x/(x^2+1) is increasing and for which values of x , it is decreasing.