Grade 12 · Calculus

Infinite series

401 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.

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

Warm-up
An infinite geometric series has first term $12$ and common ratio $\dfrac{1}{3}$ . Find the exact sum of the series.
Warm-up
An infinite geometric series has first term $15$ and common ratio $\dfrac{1}{6}$ . Find the exact sum of the series.
Warm-up
An infinite geometric series has first term $18$ and common ratio $\dfrac{1}{4}$ . Find the exact sum of the series.

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