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| =Additional Information= | | =Additional Information= |
| ==Useful websites== | | ==Useful websites== |
− | #[http://www.mathsisfun.com/combinatorics/combinations-permutations.html Permutation and combination] | + | #mathsisfun[http://www.mathsisfun.com/combinatorics/combinations-permutations.html Permutation and combination] |
− | | + | #themathpage[http://www.themathpage.com/aprecalc/permutations-combinations.html Permutation and combination] |
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