Practice Infinite Geometric Series (4) - Geometric Sequences - IB 10 Mathematics – Group 5, Algebra
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Infinite Geometric Series

Practice - Infinite Geometric Series

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Find the sum of the infinite series: 4 + 2 + 1 + ...

💡 Hint: Identify the first term and the ratio, then apply the formula.

Question 2 Easy

What is the common ratio in the series: 3, 1.5, 0.75, ... ?

💡 Hint: Divide one term by the previous one.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What condition must the common ratio meet for an infinite geometric series to converge?

r > 1
|r| < 1
|r| = 1

💡 Hint: Think about how the terms behave when we reach infinity.

Question 2

The sum of an infinite geometric series can be calculated with which formula?

💡 Hint: Remember the components: first term and common ratio.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You have an infinite geometric series with the first term 8 and a common ratio of 0.3. Find the convergence sum.

💡 Hint: Use the sum formula provided earlier.

Challenge 2 Hard

If you deposit $2000 with an interest rate of 3% compounded annually and let it work for infinitely many years, what would be the total value?

💡 Hint: Remember to account for the terminating behavior of the series.

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