Binomial Expansion Flashcards

1
Q

Formula for binomial coefficient?
(nC r)

A

n! / r!(n-r)!

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2
Q

Binomial expansion formula for values greater than 1?

A

(a + bx)^n = a^n + nCr • a^(n-r) • b^r

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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|

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