单词	binomial theorem
释义	binomial theorem noun : a theorem that specifies the expansion of a binomial of the form {latex}(x + y)^n = \\sum\\limits_{k = 0}^{n}{\\frac{n!}{(n - k)!k!}}{x^{(n - k)}}{y^{k}}{/latex} Example Sentences Recent Examples on the Web Their new paper refers to Pascal’s triangle, which is maybe most often used by math students learning binomial theorem and using the triangular set of integer values to decide what their coefficients are. Caroline Delbert, Popular Mechanics, 17 Feb. 2020 Word History First Known Use 1704, in the meaning defined above
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