# Chapter 10: Trigonometric Identities of Sum and Difference of Angles

Notes of Chapter 10: Trigonometric Identities of Sum and Difference of Angles of “A Textbook of Mathematics for Class XI” published by Khyber Pakhtunkhwa (KPK) Textbook Board, Pesharwar. These notes are shared as open educational resources.

**Download PDF ~ ch10-trigonometric-identities-of-sum-and-difference-of-angles-fsc1-kpk.pdf (442.48 KiB, 4720 downloads)**

- fsc/kpk_fsc_part_1/chapter_10_trigonometric_identities_of_sum_and_difference_of_angles
- Last modified: 5 months ago
- (external edit)