Register
Express cos9x cos3x as a sum of two trigonometry function ​
54.5k views
4 votes
Express cos9x cos3x as a sum of two trigonometry function ​

User Noah Richards
by
8.4k points

1 Answer

6 votes

Explanation:

the answer is in the image above

Express cos9x cos3x as a sum of two trigonometry function ​-example-1
User Jwernerny
by
8.6k points
← Prev Question Next Question →

Related questions

User Sajas
asked Oct 24, 2024 210k views
Prove that (cosx+cos3x+cos5x)/(sinx+sin3x+sin5x) = cot3x​
Sajas asked Oct 24, 2024
by Sajas
8.2k points
1 answer
1 vote
210k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!