Question

6.
(cosa - cos 3a)(sin 80 + sin 2a)
(sin 5a --sina)(cos 40 - cos 6u)
1) -1
2) -2
3) 2
4) 1​

Answer 1

Answer:

Sorry I didn't know this answer

Answer 2

Answer:

4) 1

Step-by-step explanation:

this is your correct answer.