Enrich · Mathematics Extension 1 11–12 – Year 11 · Permutations and combinations
Enrich Use the notation n! (read as n factorial), where n! = n(n - 1)(n - 2) × … × 3 × 2 × 1 for positive integers n
Extension and enrichment for students who are ready to go deeper: rich tasks, problem solving and open-ended challenges.
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