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## InfantryNCO 3 years ago The following limit is the derivative of a composite function h at some point x=a. lim x approaches 9 ((x^2-80)^9-1)/(x-9) Find a composite function h and the value of a. Solving the limit is easy enough, but I'm having difficulty with the process for finding the composite function h and the value of a.

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1. NotTim

calc?

2. NotTim

wats a composite function?

3. InfantryNCO

Yes, this is calculus.

4. NotTim

wats composite function?

5. NotTim

|dw:1348974655279:dw| that's what i remember, may be faulty

6. NotTim

also, funny name. non commissioned officier?

7. InfantryNCO

That's the model to solve the limit. No problem with that part of the question. I'm having difficulty with the process of finding the composite function that this limit was derived from. Yes, means non-commissioned officer.

8. NotTim

F(a)=(x-9) So we can assume x=9 right? OR is it x=-9

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