Finding limits using Squeeze theorem

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    Limits Theorem
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Homework Statement


Find the limit as x approaches zero of (2sin5x)/x


Homework Equations


The limit as x approaches zero of (sinax/x) = a and there's the scalar multiple rule.

The Attempt at a Solution


Is the answer then 10?
 
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Hi PuddySporty! :smile:

Yes, 10 looks good!
 
Thank you!
 
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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