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OpenStudy (anonymous):
given f(x)=x^2+3 and g(x)=x+5/x. Find (g o f)(4) [Hint: (g o f)(4)=g(f(4))]
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OpenStudy (welshfella):
first find f(4) you do this by replacing the x in the expression for f(x) by 4 and working it out. can you do that?
OpenStudy (welshfella):
f(x) = x^2 + 3 f(4) = 4^2 + 3 = ?
OpenStudy (anonymous):
19
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