this is for holding javascript data
Rachael Sharp edited untitled.tex
about 8 years ago
Commit id: 102fab5572214194dc2a97bb07a99299a7c7349d
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index 2ef0895..fd191c0 100644
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Even $\hspace{0.5mm}$ = $\hspace{0.5mm}$ {$2k$ : $k \in \mathbb{Z}$}
Odd $\hspace{0.5mm}$ = $\hspace{0.5mm}$ {$2k+1$ : $k \in \mathbb{Z}$}
In number theory, the idea of parity allows us to solve some mathematical problems simply by making note of odd and even numbers. In the same way, the impossibility of some mathematical constructions can be proven. For example, consider the following question:
Is it possible to fill in the blanks below with $+$ and $-$ signs to create a total of $20$?
$1 $\_$ 2 $\_$ 3 $\_$ 4 $\_$ 5 $\_$ 6 $\_$ 7 $\_$ 8 $\_$ 9$