What are some mistakes to avoid when dealing with these concepts in sequences and series? 1. Write explicit and recursive formulas for sequences and series that are arithmetic and geometric 2. Use explicit and recursive formulas to identify terms, common ratios and common difference 2. Use Sigma notation to expand series 3. Write series in Sigma notation 4. Identify and use summation formulas for finite arithmetic and geometric series 5. Use summation formulas for infinite geometric series 6. Determine whether a sequence or series will converge or diverge 7. Find the limit of a sequence or series Solve sequences and series word problem applications