Evaluate 0!0!0!.
A
216216216
B
The term containing xrx^rxr in (a+bx)n(a+bx)^n(a+bx)n is (nr)an−rbrxr\boxed{\displaystyle \binom{n}{r}a^{n-r}b^r x^r}(rn)an−rbrxr.
C
For positive integer nnn, the binomial theorem is (a+b)n=∑r=0n(nr)an−rbr\boxed{\displaystyle (a+b)^n=\sum_{r=0}^{n}\binom{n}{r}a^{n-r}b^r}(a+b)n=r=0∑n(rn)an−rbr.
D
111
1.4.1 Sequences and Series - The Binomial Theorem Flashcards
Flashcards for WJEC A Level Maths 1.4.1 Sequences and Series - The Binomial Theorem, covering the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4. 23 cards, matched to the WJEC A Level Maths (1300QS) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.