EC14C_Problem_Set_5_-_updated - EC14C Problem Paper # 5...

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1 EC14C Problem Paper # 5 Sequences and Series Sequences In Exercises 1-4, write the first five terms of the given sequence. 1. 1 3 2 n n a n 2. 1 ) 1 ( 1 n n a n n 3. 1 3 2 n n a 4. n n n e a ) 1 ( In Exercises 5-6, write the first five terms of the given sequence. 2 , 3 2 . 5 1 1 n a a a n n 3 , 1 1 . 6 2 1 2 1 n a a a a a n n n (This is called the Fibonacci sequence) Determine whether each sequence is Arithmetic or Geometric and write a formula for the general term of the sequence. ,.... 19 , 15 , 11 , 7 , 3 . 7 ,.... 4 , 1 , 2 , 5 . 8 ,.... 54 , 18 , 6 , 2 . 9 ,.... 23 , 17 , 11 , 5 . 10 ,..... 3 4 , 3 2 , 3 1 , 6 1 . 11 ,.... 25 1 , 5 1 , 1 , 5 . 12 In Exercises 13- 16, determine an expression for the n th term. 13. ,....... , , , 1 7 1 5 1 3 1 14. 5 4 4 3 3 2 2 1 , , , 15. .... , , , , 16 15 8 7 4 3 2 1 16. 0.5, 0.05, 0.005, 0.0005, … 17. If a contractor does not complete a multimillion dollar construction project on time,
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EC14C_Problem_Set_5_-_updated - EC14C Problem Paper # 5...

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