SUEC 高中 Adv Maths (AGP, HP).pptx
- 10. 𝒑𝒈 𝟏𝟒𝟏
𝐺𝑃
2 ∙ 3 0
𝐺𝑃
𝑛 = 0 𝑏𝑢𝑡 𝑇1 𝑛 = 10 𝑏𝑢𝑡 𝑇11
𝑟 = −3
𝑆11 =
2(1 + 311)
1 + 3
=
1 + 311
2
- 12. 𝒑𝒈 𝟏𝟒𝟒 Harmonic Progression
A sequence is called a HP if the reciprocals of its terms form an AP
Notes de l'éditeur
- https://www.quora.com/What-is-the-sum-of-the-series-1-1-3-5-1-3-5-7-1-5-7-9-up-to-n-terms
- https://www.cuemath.com/algebra/introduction-progressions/