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Example 7 - Chapter 8 - Predicting What Comes Next: Exploring Sequences & Progress
Last updated at June 9, 2026 by Teachoo
Class 9
Chapter 8 - Predicting What Comes Next: Exploring Sequences & Progress
- Definition
- Explicit Rule for a Sequence
- Recursive Rule for a Sequence
- VirahΔnkaβFibonacci sequence
- Exercise Set 8.1
- Arithmetic Progressions
- Visualising an AP
- Sum of the First n Natural Numbers
- Exercise Set 8.2
-
Geometric Progressions
- Fractals as a GP Sequence
- Visualising a GP
- Exercise Set 8.3
- End-of-Chapter Exercises
Transcript
Example 7 Is 1, 3, 9, 27, 81, β¦ a geometric progression? If so, what is the common ratio? Given sequence 1, 3, 9, 27, 81, β¦ If its GP, then common ratio is same So, we need to show (π^ππ ππππ)/(π^ππ ππππ)=" " (π^ππ ππππ)/(π^ππ ππππ) Now, π/π=π/π 3 = 3 Since common ratio is same, it is a GP And, Common ratio = r = 3
