9.3 Geometric Sequences

9.3 Geometric Sequences - 9.3 Geometric Sequences...

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Unformatted text preview: 9.3 Geometric Sequences Wednesday, November 02, 2011 6:49 AM Agenda (11/2-3) 1. Notebook Quiz/Check (I will walk around and look for 2 things as you are filling out the Notebook Quiz). 2. Classwork (see below) 3. Lesson: 9.3 Geometric Sequences ____________________ Classwork Find the next 4 terms in this Find the missing terms x, 13, 43, y, z, 1213,… sneaky sequence: in the following 1, 5, 4, 3, 7, 1, 10, -1, 13, -3… arithmetic sequence: In the above sequence, __, 7,__, __, 22, 27 each term after the first term, x, is 4 more than 3 times the previous term. What is the sum of x + z? The fourth term of an Determine the seating arithmetic sequence is 10 capacity of an and the sixth term is 16. auditorium with 36 rows Determine the sequence. of seats if there are 15 seats in the first row, 18 in the second row, 21 in the third row, and so on. ___________________ Lesson: 9.3 Geometric Sequences Goal: Define geometric sequences and find summations DOD Geometric Sequence: A sequence in which the ratio of any two consecutive terms is constant. If , then there exists such that Ch_9 Page 1 Common ratio: nth Term of a Geometric Sequence Sum of a Finite Geometric Sequence Sum of an Infinite Geometric Sequence Examples Determine whether the sequence is geometric. If so, find the common ratio. Find the nth term of the given geometric sequence. Ch_9 Page 2 Find the Sum Ch_9 Page 3 ...
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