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10.07.2019 •
Mathematics
Let f(x)=x-2 and g(x)=x2-7x-9.find f (g-1)
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Ответ:
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
Ответ:
f=5
Step-by-step explanation:
5f +7 =32
5f+7-7=32-7
5f=25
f=5
hope it helped :) <3