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How do i write an equation for the nth term of the arithmetic sequence.
3,6,9,12,...
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= 3 + (n-1)*3,
or, since = d = 3 for this arithmetic progression, you can simplify the formula
= 3n.
On arithmetic progressions read 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
- Solved problems on arithmetic progressions
in this site.