The notations n! and (n,r)
Exam specification: Edexcel > Maths A-level > C2 > Sequences and series
Contents: [tpcpermcombmlst]
Exercises: [tpcpermcombxlst]

Exam specification: Edexcel > Maths A-level > C2 > Sequences and series
Contents: [tpcpermcombmlst]
Exercises: [tpcpermcombxlst]