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14-06-2016
Mathematics

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let f(x) = x^2+5 and g(x)=((x+5)/x). Find (g*f)(-3)

Respuesta :

14-06-2016

Hello,

f(x)=x²+5
g(x)=(x+5)/x

g(f(x))=g(x²+5)= (x²+5+5)/(x²+5)=(x²+10)/(x²+5)

g(f(-3))=(9+10)/(9+5)=19/14

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