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Speed Run
Improve speed and accuracy with a timed multiple-choice quiz.
IB: 4
5 problems
IB: 5
15 problems
IB: 6
12 problems
IB: 7
10 problems
Max
3 problems
Theoretical introduction to nCr, or (nr), and Pascal's triangle.
Using nCr to expand binomials like (1+2x)7.
Using permutations & combinations alongside principles to count the ways things can be selected or arranged.
Advanced techniques for scenarios with branches, negative counting, and permutations where items need to stay together / separate.
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