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Card 1 of 21

Evaluate 5!5!5!.

A

By definition, 0!=1\boxed{0!=1}0!=1​.

B

27−54x+36x2−8x3\mathbf{27-54x+36x^2-8x^3}27−54x+36x2−8x3

C

120\mathbf{120}120

D

There are (nr)\binom{n}{r}(rn​) ways to choose bxbxbx from rrr brackets.

Card 1 of 21

1.4.1 Binomial expansion for positive integer n Flashcards

  1. A Level
  2. /Maths
  3. /1.4.1 Binomial expansion for positive integer n

21 flashcards on OCR A Level Maths 1.4.1 Binomial expansion for positive integer n: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards