SOLUTION: help!!!! if f(2x)=4/2+x calculate 2f(x)=?

SOLUTION: help!!!! if f(2x)=4/2+x calculate 2f(x)=?

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Question 72423This question is from textbook
: help!!!!
if f(2x)=4/2+x
calculate
2f(x)=? This question is from textbook

Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!

Let .
Then, .

So,
or

Replacing z by x

So,
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