Practice Practice Problems (5) - Finite Series - IB 10 Mathematics – Group 5, Algebra
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Practice Problems

Practice - Practice Problems

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Practice Questions

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Question 1 Easy

Find the sum of the first 5 terms of the series: 1 + 2 + 3 + 4 + 5.

💡 Hint: Use the formula for the sum of an arithmetic series.

Question 2 Easy

Determine the common difference for the series: 7, 10, 13, 16.

💡 Hint: Subtract subsequent terms.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for the sum of the first n terms of an arithmetic series?

S_n = n/2 * (2a + (n-1)d)
S_n = a * r^n / (1 - r)
S_n = n * (a + l)

💡 Hint: Think about the relationship between terms.

Question 2

If the common ratio r of a geometric series is equal to 1, what happens?

True
False

💡 Hint: Consider what a constant series means.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Prove that the sum of the first n terms of an arithmetic sequence can be expressed in multiple forms and solve for n = 50, a = 5, d = 3.

💡 Hint: Use the various formulas you've learned.

Challenge 2 Hard

Consider a geometric series where a = 4 and r = 0.5. Determine the sum of the first 10 terms and its significance.

💡 Hint: Pay attention to the decimal behavior and convergence.

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