SOLUTION: The sequences are defined using recursion formulas. Write the first four terms of each sequence. a<sub>1</sub> = 12 and a<sub>n</sub> = a<sub>n-1</sub> + 4 for n &#8807; 2.

Algebra ->  Sequences-and-series -> SOLUTION: The sequences are defined using recursion formulas. Write the first four terms of each sequence. a<sub>1</sub> = 12 and a<sub>n</sub> = a<sub>n-1</sub> + 4 for n &#8807; 2.       Log On


   

Question 481832: The sequences are defined using recursion formulas. Write the first four terms of each sequence. a1 = 12 and an = an-1 + 4 for n ≧ 2.

Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
a1 = 12 and an = an-1 + 4 for n ≧ 2.

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a1 = 12

a2 = a2-1 + 4 = a1 + 4 = 12 + 4 = 16

a3 = a3-1 + 4 = a2 + 4 = 16 + 4 = 20

a4 = a4-1 + 4 = a3 + 4 = 20 + 4 = 24


Edwin