Question

2 Sin 6. Sin 66 find the value ​

Answer 1

Answer:

hope this may helpful to u

Answer 2

Answer:

Step-by-step explanation:

this question is asked in the product format .They want this product as the sum or difference of trigonometric functions

there are 4 fundamental formulas in transformation for thorem A,B belong to R.

2sinA.sinB is the product format of cos(A-B)-cos(A+B)