Combinatorics · Chapter 4 of 10

Binomial coefficients

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#	Title	Difficulty	Source	Tags
611	Ten choose three	Easy	Lemma	Binomial coefficients
612	A binomial coefficient	Easy	Lemma	Binomial coefficients
613	With a coefficient inside	Easy	Lemma	Binomial coefficients
614	A whole row of Pascal's triangle	Easy	Lemma	Binomial coefficients
615	Alternating row sum	Easy	Lemma	Binomial coefficients
1544	Coefficient of x^6 in polynomial power	Easy	Hall & Knight	Multinomial theoremPolynomial expansion
616	The constant term	Medium	Lemma	Binomial coefficients
860	Equal Binomial Coefficients	Medium	Hall & Knight	symmetrybinomial
925	Binomial Coefficient Equality	Medium	Hall & Knight	symmetrybinomial identities
926	Second Binomial Value	Medium	Hall & Knight	symmetrybinomial identities
1545	Coefficient of x^8 in quartic expansion	Medium	Hall & Knight	Multinomial theoremSeries expansion
1546	Coefficient of x^23 in complex polynomial power	Medium	Hall & Knight	Multinomial theorem
1547	Coefficient with fractional exponent	Medium	Hall & Knight	Generalized binomial theoremSeries expansion
1548	Coefficient of x^3 in square root polynomial	Medium	Hall & Knight	Generalized binomial theorem
1549	Coefficient of x^8 with rational coefficients	Medium	Hall & Knight	Generalized binomial theorem