Name: ___________________________________
Miami Dade College
Chapter 13 Test
December 9, 2013
1. Write down the first six terms of the sequence .
2. Find the sum of
3. Find the 80th term of the arithmetic sequence
4. Find the first term and the common difference of the arithmetic sequence whose 7th term is 31 and 20th term is 96. Find the sum of the first 120 terms of this sequence.
5. Find the fifth term and the n-th term of the geometric sequence whose first term is –2 and common ratio is 4.
6. Find the n-th term of the geometric sequence
7. Find the sum of the first 10 terms in the geometric sequence 5, 10, 20, 40, …
8. Find the sum of the geometric sequence with first term 1 and common ratio.
9. Use the Principle of Mathematical Induction to show that the given statement is true for all natural numbers.
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