Question 85709
evaluate (g of f)(5).  f(x)=(x-9)/x, g(x)=x^2+3. 
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g[f(5)] = g[(5-9)/5)]
=g[-4/5]
= (4/5)^2 + 3
= 16/25 = 75/25
=91/25
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Cheers,
stan H.