SUM AND DIFFERENCE FORMULA IN TRIGONOMETRY WORKSHEET

Problem 1 :

sin (45^º) cos (15^º) – cos (45^º) sin (15^º)

Solution

Problem 2 :

sin (53^º) cos (7^º) + cos (53^º) sin (7^º)

Solution

Problem 3 :

Solution

Problem 4 :

Solution

Problem 5 : 

Solution

Problem 6 :

Solution

Problem 7 :

sin (2A) cos (A) – cos (2A) sin (A)

Solution

Problem 8 :

cos (3α) cos (α) + sin (3α) cos (α)

Solution

Problem 9 :

Solution

Problem 10 :

Solution