jackibriansjoy
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can someone answer and explain this to me??? thanks!!!!!!!!!!! ​

Can Someone Answer And Explain This To Me Thanks class=

Sagot :

sqdancefan

9514 1404 393

Answer:

  (f◦g)(x) = x

Step-by-step explanation:

The composition (f◦g)(x) means f(g(x)). As with any function evaluation, put the argument where the variable is, and simplify.

  [tex](f\circ g)(x)=f(g(x))=f\left(\dfrac{3x}{x-1}\right)=\dfrac{\left(\dfrac{3x}{x-1}\right)}{\left(\dfrac{3x}{x-1}\right)-3}\\\\=\dfrac{\left(\dfrac{3x}{x-1}\right)}{\left(\dfrac{3x-3(x-1)}{x-1}\right)}=\dfrac{3x}{3x-3x+3}=\dfrac{3x}{3}\\\\\boxed{(f\circ g)(x)=x}[/tex]

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