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Suppose the function f and g are defined as follows.

Suppose the function f and g are defined as follows.-example-1
User PEZ
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1 Answer

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24 votes

In this session we will focus on calculating the composition of f and f.

given the function f, the composition f composition f is obtained by taking the definiton of f and replace the varaible x with the function f itself. So we are given that


f(x)=(8)/(5x)

So


f\circ f(x)=(8)/(5((8)/(5x)))=(8)/((8)/(x))=(8x)/(8)=x

So we have that f composition f is the function x.

User Xuanyue
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