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🔢 Треугольник Паскаля #математика #алгебра


less than 1m read
·Nov 3, 2024

Начинаем. Мы всегда с единицы. А дальше в сумме двух чисел, находящихся над ним слева и справа, то есть вот сюда. Я ставлю: Один плюс один, они вместе дают мне два. Ну а заканчиваю тоже всегда единицей.

Дальше 1 + 2, 2 + 1, 3 и дальше единицы заканчиваю 1. 1 + 3, 4, 3 + 3, 6, 3 + 1, 4 и снова один. Один, пять, десять, снова 10, 5,1. Так можно дописать абсолютно до любой строки, которую вы хотите. Треугольник и называется треугольником Паскаля.

Чему равно A + b^5? То я беру первый коэффициент, вот он, это и есть C из 5 по 0. Берём следующие коэффициент, это у нас C из 5 по 1 на A в четвёртой на B в первой. У А будет третьей степени, а B вторая: 10 A²b³ - 5 A b⁴ B.

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