Binomial Theorem
Binomial Theorem for Positive Integer
Expands a binomial expression raised to any positive integer power n.
Number of Terms in Binomial Expansion
Gives the total number of terms in the expansion of (a + b)^n.
General Term in Binomial Expansion
Yields the (r + 1)-th term in the expansion of (a + b)^n.
Middle Term of Binomial Expansion
Specifies the middle term(s) of the expansion based on whether n is even or odd.
Greatest Binomial Coefficient
Identifies the index with the maximum binomial coefficient for a given power n.
Symmetry of Binomial Coefficients
States that coefficients equidistant from the beginning and end of the expansion are equal.
Ratio of Consecutive Binomial Coefficients
Gives the ratio between two consecutive binomial coefficients of index n.
Absorption Identity for Binomial Coefficients
Absorbs the multiplier r into the combination by decrementing both indices.
Division Identity for Binomial Coefficients
Rewrites division of a combination by r + 1 as an incremented combination divided by n + 1.
Sum of Binomial Coefficients
Computes the total sum of all binomial coefficients for a power n.
Sum of Even and Odd Binomial Coefficients
States that the sum of even-indexed coefficients equals that of odd-indexed coefficients, both equal to 2^(n-1).
Vandermonde's Identity
Evaluates the convolution sum of binomial coefficients across two independent powers.
General Term of Multinomial Expansion
Gives the general term in the multinomial expansion of (x_1 + x_2 + ... + x_k)^n.