Question

If c(x)=5/x-2 and d(x)=x+3, what is the domain of (cd)(x)?

Answer 1

The domain is all Real x except x = 2 .

Explanation:

(cd)(x) = ( 5 / x-2) * x+3

= 5(x+3)/(x-2)

The domain is all Real x except x = 2 .

(because when x = 2 (cd)(x) is undefined).