Below is the series on Calculus – Part III. All links point videos on the Sipnayan Youtube channel.  The link to the complete Playlist can be found here.

Lesson 93: Calculus 3.00 Introduction to Chapter 3
Lesson 94: Calculus 3.01 Formulas for Finding the Derivative of Trigonometric Functions
Lesson 95: Calculus 3.02 Derivative of Trigonometric Functions – Worked Examples 1
Lesson 96: Calculus 3.03 Derivative of Trigonometric Functions – Worked Examples 2
Lesson 97: Calculus 3.04 Derivative of Trigonometric Functions – Worked Examples 3
Lesson 98: Calculus 3.07 Introduction to Chain Rule
Lesson 99: Calculus 3.08 Chain Rule – Worked Examples 1
Lesson 100: Calculus 3.09 Chain Rule – Worked Examples 2
Lesson 101: Calculus 3.10 Chain Rule – Worked Examples 4 (Negative Exponents and Radicals)
Lesson 102: Calculus 3.11 Chain Rule – ‘Derivation’ of The General Power Rule