Real numbers
Let x be a real number such that: \[x^4 + \frac{1}{x^4}=2\] Find the possible values of \[x + \frac{1}{x}\].
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- nafistiham
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Re: Real numbers
step by step
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
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Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Re: Real numbers
^How does that answer the question? We are required to find the possible values of \[x + \frac{1}{x}.\]
Everybody is a genius; but if you judge a fish on its ability to climb a tree, it will live its entire life believing that it is stupid. - Albert Einstein
- nafistiham
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Re: Real numbers
last step.
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.