Calculus, Delta- Epsilon Proof Of Limits

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Homework Statement


Is this the right direction to prove

Given that , prove that . Using the delta epsilon definition to prove that means that, for any arbitrary small there exists a where as:




If we choose any constant for (x) called C, as long as C does not equal zero, the equation follows:



whenever , since f(x) as x goes to a is equal to L.

Multiply the by the absolute vale of the constant C, , so you have



Now the product of absolute values is equal to the absolute value of the products so,




The Attempt at a Solution

 

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There appear to be whole sections of your post missing!
 
calculations in attachment

I apologize but the attatchment has the work in it.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...

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