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The sequence s, t, (2t - s), (3t - 2s) ... forms an Arithmetic sequence. True or false? - True.
The sequence 1/3, 1/4, 1/6, 1/12, ... is neither Arithmetic nor Geometric True or false? - True.
On Arithmetic progressions see the lessons
- Arithmetic progressions
- The proofs of the formulas for arithmetic progressions
- Problems on arithmetic progressions
- Word problems on arithmetic progressions
- Chocolate bars and arithmetic progressions
- Mathematical induction and arithmetic progressions
- One characteristic property of arithmetic progressions
- Solved problems on arithmetic progressions
in this site.
On Geometric progressions see the lessons
- Geometric progressions
- The proofs of the formulas for geometric progressions
- Problems on geometric progressions
- Word problems on geometric progressions
- Mathematical induction and geometric progressions
- One characteristic property of geometric progressions
- Solved problems on geometric 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 topics
"Arithmetic progressions" and "Geometric progressions".