AM28
02.06.2020 •
Mathematics
For each pair of functions and below, find and .
Then, determine whether and are inverses of each other.
Simplify your answers as much as possible.
(Assume that your expressions are defined for all in the domain of the composition.
You do not have to indicate the domain.)
f(x)=3/x,x=/= 0
g(x)=3/x, x=/=0
f(g(x))=
g(f(x))=
f and g are inverses of each other
f and g are not inverses of each other
f(x)=x+4
g(x)=-x+4
f(g(x))=
g(f(x))=
f and g are inverses of each other
f and g are not inverses of each other
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Ответ:
1- Inverses .
2 - Not inverses.
Step-by-step explanation:
Notice that
1 -
Since their composition is the identity, then they are inverses.
2 -
Since their composition is not the identity, then they are not inverses.
Ответ:
C ≈ 471.24
Step-by-step explanation:
Using the formula C= 2(pi)r we must find the radius first. Radius is half the diameter, which is 150 in this equation. We plug in c = 2(pi)75, and solve from there :)