Binomial Expansion Flashcards
1
Q
Formula for binomial coefficient?
(nC r)
A
n! / r!(n-r)!
2
Q
Binomial expansion formula for values greater than 1?
A
(a + bx)^n = a^n + nCr • a^(n-r) • b^r
3
Q
Binomial expansion formula for values less than 1?
A
(a + bx)^n =
a^n[1 + nx + n(n-1)…/r! • (bx/a)^r]
Valid for |x| less than 1 or |bx/a|