Register
Please help me with this question
42.0k views
3 votes
Please help me with this question

Please help me with this question-example-1
User Abdelbaki Boukerche
by
8.7k points

2 Answers

4 votes

Answer:

○ double-angle identity for cosine

Explanation:

Here is one the formulas:

2θ = 2cos²θ - 1

I am joyous to assist you anytime.

User MrYogi
by
8.6k points
5 votes

Answer:

Double Angle Identity for Cosine

Explanation:

Using the double angle identity for cosine:

Cos2x = 2 cos^2x - 1

User Spasm
by
8.3k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
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?
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!