Series – Sum of Special Series (Σn, Σn², Σn³)
Maths · Grade 11 · Week 21 · 25 questions
Series is a core topic in Grade 11 mathematics covering Sum of Special Series (Σn, Σn², Σn³, Σn. A strong foundation in series is critical for board exam success and prepares you for undergraduate mathematics and data science.
What you'll practise
- Solve sum of special series (σn
- Prove σn²
- Evaluate σn³
- Apply series concepts to solve practice problems
All 25 questions in this Series – Sum of Special Series (Σn, Σn², Σn³) quiz
Grade 11 Maths — Series – Sum of Special Series (Σn, Σn², Σn³): 25 practice questions with instant scoring and explanations.
- The sum of first n natural numbers Σn = ?
- The sum of first n squares Σn² = ?
- The sum of first n cubes Σn³ = ?
- Σ(n=1 to 5) n = ?
- Σ(n=1 to 4) n² = ?
- Σ(n=1 to 3) n³ = ?
- 1² + 2² + 3² + 4² + 5² = ?
- 1 + 8 + 27 + ... + 10³ = ?
- The sum of squares of first 10 natural numbers is:
- The sum of cubes of first 5 natural numbers is:
- Σ(n=1 to 6) n = ?
- Σ(n=1 to 10) n² = ?
- 2² + 3² + 4² + 5² = ?
- 1³ + 2³ + 3³ + 4³ = ?
- If Σ(n=1 to N) n = 55, then N = ?
- The formula for sum of first n odd numbers is:
- The sum of first 8 even natural numbers is:
- Σ(n=1 to 7) n² = ?
- The sum of first 12 natural numbers is:
- 1 + 4 + 9 + ... + 100 = ?
- 2 + 4 + 6 + ... + 20 = ?
- 1³ + 2³ + ... + 5³ = ?
- The sum of first n natural numbers is S_n = ?
- Using the formula, Σ(n=1 to 100) n = ?
- Σ(n=1 to 8) n³ = ?
Question 1 of 250 correct so far