Exercise 6.9 Class 11 Maths || Chapter 6 All Questions || 1st Year Math FSc & ICs New Book PCTB 2025

These questions are based on the Punjab's new 11th Class Maths book. For the students of FSc (Pre-Engineering) and ICs Part 1.

📌 Topics Covered in 11th Class Math Chapter 6:
✔️ Sequences and Series
✔️ Finite and Infinite Sequences
✔️ Arithmetic Sequence & Arithmetic Progression (AP)
✔️ an = a1 + (n-1)d
✔️ Arithmetic Mean (a+b)/2
✔️ Sum the series Sn = n/2[2a1 + (n-1)d]
✔️ Geometric Progression (GP) an = a1r^(n-1)
✔️ Geometric Mean G = √ab
✔️ Geometric Series Sn = a1(1-r^n)/(1-r)
✔️ Arithmetic Geometric Mean = {a+(n-1)d}br^(n-1)
✔️ Harmonic Progression an = 1/{a1+(n-1)d}
✔️ Harmonic Mean = 2ab/(a+b)
✔️ Real Life Examples

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