Any one can help with this challenging questions?

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Homework Statement


Homework Equations

challenging
3. The Attempt at a Solution
rules for derivatives
 
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Question #1:

Compute the derivative f′ (x) of f(x)=5/(4x-5)
 
any ideas how to do it?

do you know the chain rule?
 
Hi kkkkkaka!

Please use the template, most importantly

The Attempt at a Solution

shows others that you put some effort into the problem.