NEW SYLLABUS 2026–27

Chapter 6: Sequences and Series – Maths Notes All Solved Exercises & Short Questions

Complete Chapter 6 Solutions (Exercises 6.1 to 6.11)

Class 11 Mathematics  |  Punjab Board (PECTAA)

Chapter 6 Solved Exercises & Notes

Select an exercise or short questions below to read step-by-step solutions

Exercise 6.1 Solutions Sequences, general nth term & triangular numbers View → Exercise 6.2 Solutions Arithmetic progression (A.P.), common difference & nth term View → Exercise 6.3 Solutions Arithmetic mean (A.M.) & inserting n arithmetic means View → Exercise 6.4 Solutions Arithmetic series & sum of n terms of an A.P. View → Exercise 6.5 Solutions Geometric progression (G.P.), common ratio & general terms View → Exercise 6.6 Solutions Geometric mean (G.M.) & relation between A.M. and G.M. View → Exercise 6.7 Solutions Geometric series & sum of n terms of a G.P. View → Exercise 6.8 Solutions Arithmetico-geometric sequences & summation of series View → Exercise 6.9 Solutions Harmonic progression (H.P.), harmonic means & A.M.-G.M.-H.M. View → Exercise 6.10 Solutions Sigma (Σ) notation & sum of powers of natural numbers View → Exercise 6.11 Solutions Word problems: compound interest, depreciation & growth View → Chapter 6 Short Questions Key definitions, formulas & solved board examples View →