Lemma practice generator arithmetic-sequence-term #117,758,353 · Algebra · Sequences & series

Term of an arithmetic sequence

An arithmetic sequence has $a_{1} = 213$ and $a_{489} = - 9547$ . Find the common difference.

~3 minAnswer checked instantly

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your answer

Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.