Chapter 8 - The Binomial Expansion Flashcards
1
Q
How is Pascal’s triangle formed?
A
It is formed by adding adjacent pairs of numbers to find the numbers on the next row.
2
Q
What is the row of Pascal’s triangle that gives you the correct coefficients in the expansion of
(a + b)^n ?
A
It is the (n + 1)th row.
3
Q
What is n! Equal to?
A
n x (n - 1) x (n - 2) x (n - 3) x ... x 1.
4
Q
What are the two equations for factorial notation?
A
n
C = (n)
r (r)
Or
n! ———— r! (n - r)!
5
Q
What is the binomial expansion of
(a + b)^n
Like?
A
(n)(a)^n-r (b)^r
r
