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2-6 Binomial Theorem Factorials

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Presentation on theme: "2-6 Binomial Theorem Factorials"— Presentation transcript:

1 2-6 Binomial Theorem 1 2 3 Factorials
Pascal’s Triangle & Binomial Theorem 3 Practice Problems

2 Factorials Written as “n!” Used in the Binomial Theorem and Statistics

3 Simplifying Factorial Expressions
Evaluate

4 Pascal’s Triangle Expanding the Powers of b+g

5 Coefficients of Pascal’s Triangle

6 Coefficients of Pascal’s Triangle
Observations for Each Row in the form of (a+b)n There are n+1 terms n is the exponent of a in the first term and the exponent of b in the last term In each term, the exponent of a decreases by one and the exponent of b increases by one The sum of the exponents in each term is n The coefficients are symmetric. They increase at the beginning and decrease at the end

7 Constructing Pascal’s Triangle
Each number in the triangle is the sum of the two directly above it.

8 Sums of the Rows of Pascal’s Triangle

9 “Magic 11’s” of Pascal’s Triangle

10 Binomial Theorem If n is a non-negative integer, then
So to expand (x+y)4… Does look familiar?

11 Binomial Theorem Example
Expand (2x+y)5 Remember Pascal’s Triangle for (a+b)5 Follow the pattern of the exponents Simplify

12 Practice Problems


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