Mathematics A-Level
combinations
What combinations means in Mathematics A-Level, as defined for WJEC.
Definition of combinations
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Reference: WJEC
The number of ways to choose r items from n distinct items without regard to order, denoted by nCr or (n choose r).
Topics that use combinations
Related terms
- ascending powers of x
- binomial approximations
- binomial coefficients
- binomial theorem
- factorials
- finite expansion
- Pascal's triangle
Using combinations in the exam
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