SOLUTION: Given f(x)=|x| and g(x)=18/x^2+9, find the expressions. #1. (f o g)(4)= #2. (g o f)(2)= #3. (f o f)(1)= #4. (g o g)(0)= Note: Type an integer or a simp

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Question 1131866: Given f(x)=|x| and g(x)=18/x^2+9, find the expressions.

#1. (f o g)(4)=
#2. (g o f)(2)=
#3. (f o f)(1)=
#4. (g o g)(0)=




Note: Type an integer or a simplified fraction.
Found 2 solutions by Edwin McCravy, MathLover1:
Answer by Edwin McCravy(20065)   (Show Source): You can put this solution on YOUR website!
Given f(x)=|x| and g(x)=18/x^2+9, find the expressions.
I won't use your numbers, but other numbers so that you can use them as
examples to go by:

Notice also that there is a HUGE difference between 18/x^2+9 and 18/(x^2+9).
If you don't put parentheses around x^2+9, then the +9 is NOT part of
the denominator.  If you want +9 to be part of the denominator, then
you MUST place the entire denominator within parentheses.  That is,

18/x^2+9 means  and 18/(x^2+9) means .

Which one did you mean for g(x)???? I will assume you meant the first one.
If no then do them using the second one, and remember to put parentheses
around entire denominators if the contain more than 1 number or 1 letter.

Edwin


#1. (f o g)(5)=
#2. (g o f)(3)=
#3. (f o f)(2)=
#4. (g o g)(4) =


Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
Given


find the expressions:
#1. =




then





#2.=







#3. =





=>




#4. =










=>
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