Consider the function
f(x) = \frac{x^2}{x^2 + 82}
Find the intervals on which f is decreasing and increasing. Enter inf or -inf for ? or -? respectively. Enter oo(a,b) for the open interval (a, b), oc(a,b) for the half-open interval (a, b), co(a,b) for the half-closed interval [a, b) and cc(a,b) for the closed interval [a, b].
Enter your answer as a set of intervals. That is, if the function is decreasing on the interval (a, b) enter {oc(a,b)}. If the function is decreasing on the interval (a, b) and also on the interval [c, d), enter {oc(a,b),cc(c,d)}. Enter maximal intervals.
f is decreasing on the intervals in {0, inf}
f is increasing on the intervals in {-inf, 0}
Your last answer was interpreted as follows:
{0, ?}
Your last answer was interpreted as follows:
{-?, 0}
