Home › TS EAPCET (Engineering) › Mathematics › Binomial Coefficients › The identity n choose k = (n-1 choose k-1) + (n-…
The identity n choose k = (n-1 choose k-1) + (n-1 choose k) is known as which rule?
ALeibniz's rule
BPascal's rule
CNewton's rule
DVandermonde's rule
Answer & Solution
Correct answer: B. Pascal's rule
Adding the two entries above a position in the triangle gives that entry, which is called Pascal's rule.
Related questions
A pizza shop offers 9 toppings. How many ways can a customer pick 3 different toppings?How many 4-element subsets does the set {1, 2, ..., 8} have?In the multiplicative formula, what does the denominator k factorial correct for?How many 5-bit words made of 0s and 1s contain exactly two 1s?In (1 + x) to the power n, the coefficient of which term is n choose k?If k is greater than n, how is the binomial coefficient commonly defined?In row 6, what is the sum of the three middle entries?The sum of squares of row n equals the middle entry of which row?