Register
Express cos(P+Q) in terms of trigonometric ratios of P and Q
10.3k views
5 votes
Express cos(P+Q) in terms of trigonometric ratios of P and Q

User Ankit Thakur
by
8.1k points

1 Answer

2 votes

Answer:

cosPcosQ - sinPsinQ

Explanation:

using the addition identity

• cos(x + y) = cosxcosy - sinxsiny

then

cos(P + Q) = cosPcosQ - sinPsinQ

User Adam Elsodaney
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.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
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.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!