Lecture-8

00:00:20 Derivation for thrice angles sin3x, cos3x and tan3x

00:14:36 Derivation for sinA+sinB, sinA-sinB, cosA+cosB and cosA-cosB

00:18:26 NCERT Exercise 3.3 Question 12

00:25:16 NCERT Exercise 3.3 Question 13

00:29:46 NCERT Exercise 3.3 Question 14

00:34:36 NCERT Exercise 3.3 Question 15