Copyright © 2014, 2010, 2007 Pearson Education, Inc. Chapter 11 Sequences, Induction, and Probability 11.5 The Binomial Theorem Copyright © 2014, 2010, 2007 Pearson Education, Inc. 1
Objectives: Evaluate a binomial coefficient. Expand a binomial raised to a power. Find a particular term in a binomial expansion.
Definition of a Binomial Coefficient
Ex. 1: Evaluating Binomial Coefficients Evaluate each of the following:
Pascal’s Triangle
A Formula for Expanding Binomials: The Binomial Theorem
Ex. 2: Using the Binomial Theorem Expand:
Finding a Particular Term in a Binomial Expansion The (r + 1)st term of the expansion of (a + b)n is
Ex 3: Finding a Single Term of a Binomial Expansion Find the fifth term in the expansion of