Question 231790
 Find 
(a) (f o g)(x) and the domain of f o g 
fog(x) = f[sqrt(x-3)] = [25 -(x-3)] = [28-x]
Domain: All Real Numbers >= 3.
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(b) (g o f)(x) and the domain of g o f.
gof(x) = g[sqrt(25-x^2] = sqrt[sqrt(25-x^2)-3]
Domain: All Real Numbers x where -5<= x <= 5
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the Square root symbol is across the whole equation if its not showing on the problem.
f(x)= sqrt(25-x^2), g(x)= sqrt(x-3)
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Cheers,
Stan H.