Hello, helloying!

The denominator of is always positive.6) Given: . , . find

and determine the values of for which both and are positive.

The numerator is positive for

. . Hence, is positive on

The derivative is: .

The denominator is always positive.

The numerator is a down-opening parabola with intercepts

The graph is positivebetweenthe intercepts.

. . Hence, is positive on

Therefore, and are both positive on: .