Register
Prove the identity. cos (x + y) 1- tanx tany cosx cosy Note that each Statement must be based on a Rule chos the right of the Rule. Statement
200k views
2 votes
Prove the identity.

cos (x + y)
1- tanx tany
cosx cosy
Note that each Statement must be based on a Rule chos
the right of the Rule.
Statement

Prove the identity. cos (x + y) 1- tanx tany cosx cosy Note that each Statement must-example-1
User Yaroslav Melnichuk
by
8.8k points

1 Answer

3 votes

Answer:

Hi... I should do like this

Prove the identity. cos (x + y) 1- tanx tany cosx cosy Note that each Statement must-example-1
User Maalls
by
7.7k points
← Prev Question Next Question →

Related questions

User Eggs McLaren
asked Feb 28, 2019 9.9k views
Prove that siny tany +cosy=secy
Eggs McLaren asked Feb 28, 2019
by Eggs McLaren
8.7k points
1 answer
0 votes
9.9k 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

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?
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!