Question 1086935: Write an explicit and recursive formula for the sequence 4, 7, 10 …
Found 2 solutions by ikleyn, Fombitz:
Answer by ikleyn(52803)   (Show Source):
You can put this solution on YOUR website! .
Arithmetic progression with the first term of 4 and the common difference of 3.
Explicit formula:  =  = 4 + 3*(n-1) = 1 + 3n, n = 1, 2, 3, . . .
Recursive formula:  = 4,  =  , n = 1, 2, 3, . . .
There is a bunch of lessons on arithmetic progressions in this site:
- Arithmetic progressions
- The proofs of the formulas for arithmetic progressions
- Problems on arithmetic progressions
- Word problems on arithmetic progressions
- Mathematical induction and arithmetic progressions
- One characteristic property of arithmetic progressions
- Solved problems on arithmetic progressions
Also, you have this free of charge online textbook in ALGEBRA-II in this site
- ALGEBRA-II - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this online textbook under the topic "Arithmetic progressions".
Answer by Fombitz(32388)  (Show Source):
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