anonymous
  • anonymous
Find f(g(x)) and g(f(x)). f(x)=-7x g(x)=cosx
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
f(g(x))=-7cosx
anonymous
  • anonymous
g(f(x))=cos(-7x)
anonymous
  • anonymous
correct?

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anonymous
  • anonymous
looks right , note that cos -7x = cos 7x
anonymous
  • anonymous
Ok, so answer that I had for g(f(x)) is incorrect?
anonymous
  • anonymous
cos7x is a fully-simplified answer?
anonymous
  • anonymous
its a picky answer.. yes look right.
anonymous
  • anonymous
And this is due to the even-odd property of cos, yes?
anonymous
  • anonymous
right the cosine of a negative angle is equal to the cosine of the positive.
anonymous
  • anonymous
Ok, thank you.
anonymous
  • anonymous
yup

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