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Question 1 - Think & Reflect (Page 177) - Explicit Rule for a Sequence - Chapter 8 - Predicting What Comes Next: Exploring Sequences & Progress
Last updated at August 14, 2026 by Teachoo
Maths Class 9
Chapter 8 - Predicting What Comes Next: Exploring Sequences & Progress
- Definition
-
Explicit Rule for a Sequence
- Recursive Rule for a Sequence
- Virahānka–Fibonacci 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
Question 1 - Think & Reflect (Page 177) Why is it useful to have an explicit formula for the nth term of a sequence? Because it saves an incredible amount of time. If you need to find the 1000th term of a sequence, an explicit formula lets you calculate it instantly. Without it, you would have to manually calculate all 999 terms before it just to find out what it is.
