9.2 Arithmetic Sequence

9.2 Arithmetic Sequence - 9.2 Arithmetic Sequence Notebook...

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Unformatted text preview: 9.2 Arithmetic Sequence Notebook Quiz/Check on block day. End of Grading Period: Nov. 4 Tuesday, November 01, 2011 6:50 AM Agenda (11/1): 1. Whiteboard Work 2. Lesson: 9.2 Arithmetic Sequences ________________________ Whiteboard Work A deposit of $100 is made each month in an account that earns 12% interest compounded monthly. The balance in the account after months is given by Compute the first 4 terms of Find the balance in this the sequence. account after 5 years (60 months) by computing the 60th term Find the balance in this account after 20 years (240 months) by computing the 240th term ________________________ Lesson: 9.2 Arithmetic Sequences Goal: Define arithmetic sequences and find summations DOD Arithmetic Sequence: Sequence in which the difference of any two consecutive terms is constant. If , then there exists such that is called the common difference. nth Term of an Arithmetic Sequence Ch_9 Page 1 nth Term of an Arithmetic Sequence Sum of a Finite Arithmetic Sequence Why does this work? Examples Is the sequence arithmetic? If so, find the common difference. Find the formula for Remember that for the given arithmetic sequence. , so I need to find and Find the nth partial sum of the arithmetic sequence. Remember that , so I need to find Ch_9 Page 2 and Remember that , so I need to find Ch_9 Page 3 and ...
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