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Cdelia2000 Cdelia2000
  • 08-02-2017
  • Mathematics
Answered

Let f(x)=x^2 and g(x)=x-3. Find (fog)(-5). Please help!!!! Will fan and medal!!!

Verified Answer :

miloglos2005
miloglos2005 miloglos2005
  • 08-02-2017

a. (f o g)(x)= f[g(x)] = f(x-5) = (x-5)^2
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b. (g o f)(x)= g[f(x)] = g[x^2] = x^2-5
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c. (f o g)(-3) = f[g(-3)] = f[-8] = 64
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d. (g o f)(-3)= g[f(-3)] = g[9] = 4

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