Epsilon Delta Homework Statement: Finding the Factorization for f(x)-L

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Homework Statement




im not seeing a factorization for f(x)-L<e and and not sure how to proceed in this case
 
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In fact, 7 is not the limit, so you're going to have a really tough time proving the limit you showed.
 
not too sure what you're trying to do, any more info?
 
my mistake that's limit x -> 1 5x^2+2x-13=7
 
that one doesn't work either...
 
nameVoid, where are you getting these problems? Are you just making them up?
 

Thread 'Finding the nth roots of a complex number'

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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