Last derivatives based problem. would be appreciated.

The derivative of is defined by the limit,

In this case, , so the derivative would be

Simplifying the numerator gives

The numerator and denominator share a common factor of , which we can cancel because means that we're considering so that :

Then as , we're left with the derivative

step-by-step explanation:

(s)he  is right it would be 5.5% because it is smaller than 15.5% or anything smaller than 15.5% in general

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