Here's the question you clicked on:
786889
what are the critical values of f'(x)= x^2+9/x^2
critical points are those where the derivative vanishes
or the derivative does not exist
ok f we see denominator x^2 is 0,but in the up x^2+9 if we see c^2+9=0 then c^2=-9 which is 3i i dont know the solution here
so it means that c=0 is one critical value,coz derivative is not defined there
but do mind one thing,function should be defined at the critical value
so what do you think the solution here , is have any critical value ?
what function is actually given in this prob,u posted the derivative
f(x)=9/x+x is the funtion