Y1CH8 Binomial expansion Flashcards
1
Q
In pascal triangle what is always the first number of a sequence
A
1
2
Q
What is factorial notation
e.g 3!
A
3 * 2 * 1 =
3
Q
n choose r =
A
n! / r! * (n-r)!
4
Q
Binomial expansion of
(a+b)^n
A
a^n + (nC1) a^n-1*b
5
Q
Binomial estimation
A
Equate inside of binomial to estimation and work out x
6
Q
A
