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15-09-2018
Mathematics

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let f(x)=x-2 and g(x)=x2-7x-9.find f (g-1)

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cmoreno511 cmoreno511

15-09-2018

Let f(x)=x-2 and g(x)=x2-7x-9.find f (g-1) F(x)=x-2 G(x)=x^2-7x-9 G(-1)=(-1)^2-7(-1)-9 = 1+7-9 G(-1)=-1 Since g(-1)=If (g(-1))=f(-1) F(g(-1))=(-1)-2 F(g(-1)=-3

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