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Grade 12 · Precalculus

Sequences & series

209 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

  1. Warm-up

    A geometric series has first term 33 and common ratio 22. Find the sum of the first 77 terms of the series.

  2. Warm-up

    A geometric series has first term 66 and common ratio 33. Find the sum of the first 55 terms of the series.

  3. Warm-up

    A geometric series has first term 66 and common ratio 22. Find the sum of the first 88 terms of the series.

Problems shown under their original terms: Generated (template, solver-computed).

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See every Precalculus skill for grade 12