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Special Series

14 lessons · 24 questions · 6 PYQs

What the exams ask here

  • sum 1/(k(k+1))
  • sum 1/(2k-1)^2 given pi^2/6
  • 100th term when squares removed
  • a_{n+1}=f(a_n) find a_31
  • t_k from S_n formula

Lessons

  1. Start hereThe idea and the methodFirst lesson of Special Series
  2. 1.Sum of squares cubes6 questions + fresh variantsIndore 2021 SA
  3. 2.Telescoping sum3 questions + fresh variants
  4. 3.Odd square reciprocals from basel3 questions + fresh variantsIndore 2020
  5. 4.Series of fractions min n2 questions + fresh variantsIndore 2023 SA
  6. 5.Sequence with squares removed2 questions + fresh variantsIndore 2022 SA
  7. 6.Recursive sequence nth term6 questions + fresh variantsIndore 2023 SA
  8. 7.Sum of n terms formula given2 questions + fresh variants
  9. 8.Method of differencesNew numbers every time (templates)
  10. 9.Product term seriesNew numbers every time (templates)
  11. 10.Sum of grouped seriesNew numbers every time (templates)
  12. 11.Interleaved apsNew numbers every time (templates)
  13. 12.Alternating sign seriesNew numbers every time (templates)
  14. 13.AP plus GP splitNew numbers every time (templates)