Question: how do you find the binomial coefficient?
Answer: To find the binomial coefficients for (a + b)n, use the nth row and always start with the beginning. For instance, the binomial coefficients for (a + b)5 are 1, 5, 10, 10, 5, and 1 — in that order. as “n choose r.” You usually can find a button for combinations on a calculator.