Complex Number Exponentiation: Finding the Power of z^23 for z = 1+1

Ry122
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Im trouble getting the correct answer for z^23 where z=1+1
The answer in the back of the book says its 2^16e(i8pie)
But z=|z|^(n)e(i(n)theta) Therefore the hypotenuse which is 2^(1/2) when multiplied by 23
should be 2^(23/2) not 2^(16)
 
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You're right, of course. I don't know from where the book got 216.
 
… 32 ≠ 23 …

Ry122 said:
Im trouble getting the correct answer for z^23 where z=1+1
The answer in the back of the book says its 2^16e(i*pie)

Hey guys!

It's obviously z^32 … :rolleyes:

(btw, if you type alt-p, it prints π)
 
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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