SOLUTION: find the indicated function value, if it exists, given f(x) = 2 - x and g(x) √3-x (f°g)(-2)

Algebra ->  Rational-functions -> SOLUTION: find the indicated function value, if it exists, given f(x) = 2 - x and g(x) √3-x (f°g)(-2)      Log On


   

Question 939554: find the indicated function value, if it exists,
given f(x) = 2 - x and g(x) √3-x
(f°g)(-2)
Found 2 solutions by stanbon, josgarithmetic:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find the indicated function value, if it exists,
given f(x) = 2 - x and g(x) √(3-x)
(f°g)(-2) = f(sqrt(3+2)) = f(sqrt(5)) = 2-sqrt(5)
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Cheers,
Stan H.

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Your use of spacing between f and g definitions could mean g%28x%29=sqrt%283-x%29.

f%28g%28x%29%29=2-sqrt%283-x%29

Now let x=-2. Evaluate the function composition.




2-sqrt%285%29