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| =Additional Information= | | =Additional Information= |
| ==Useful websites== | | ==Useful websites== |
| + | #[http://www.mathsisfun.com/algebra/sequences-sums-arithmetic.html Maths is fun for Arithmetic progressions] |
| + | #[http://www.mathsisfun.com/algebra/sequences-sums-geometric.html Maths is fun for Geometric progressions] |
| + | |
| ==Reference Books== | | ==Reference Books== |
| | | |