Chapter 1 Calculus 1 [ATTACH=full]2347[/ATTACH] Question 29 I know that f(a) = 1/a. On the numerator we have: (1/x) - (1/a) LCD = ax Our numerator now becomes: (a - x)/ax The original problem becomes [(a - x)/(ax)]/(x - a) Multiply (a - x) by -1 to get x - a. We now have (x - a)/(ax) ÷ (x - a). (x - a)/(ax) • 1/(x - a) Answer: 1/(ax). What does the answer mean?