Detailed solution to Problem Set 10 Exercise 13
- Question:
- Find the differential of 3x/(x + 2).
- Solutions:
- d(3x/(x + 2)) =
((x + 2) d(3x) − 3x d(x + 2))/(x + 2)2 =
((x + 2)(3 dx) − 3x dx)/(x + 2)2 =
6 dx/(x + 2)2,
which you can write as
6/(x + 2)2 dx
or 6(x + 2)−2 dx
if you want.
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