Binomial expansion Flashcards
1
Q
What are the 2 main methods for binomial expansion?
A
Pascal’s triangle and the binomial theorem
2
Q
Which button on the calculator can be used to find the binomial coefficient?
A
nCr
3
Q
What is the formula for calculating binomial coefficients?
A
nCr = n! / r!(n-r)!
4
Q
What is nC0?
A
1
5
Q
What is nC1?
A
n
6
Q
What is nC2?
A
n(n-1) / 2
7
Q
How may a rational fraction need to be expressed before using binomial expansion?
A
In partial fractions
