...Beauty, cleaning, DIY tips and more - free to join!

Login Contact us Site map Puzzle Club Ask a question Newsletter

Question Topics

Answers index
Astronomy
Beauty
Biology
Business
Careers
Chemistry
Cleaning
Computing
DIY
English
Entertainment
Games & Puzzles
Gardening
Geography
Geology
Health
History
Hobbies
Jobs
Maths
Modelling
Money
Most Popular
Music
No Answer
Pets
Philosophy
Politics
Physics
Relationships
Religion
Science
Self Development
Travel
Unknown

How To Articles
Ask The Expert

New Members

Colin Howie

Members Home
Join For Free >>

Prove Indentities

1). Prove the identity cos 3θ - cos 7θ / sin 7θ + sin 3θ ≡ tan 2θ 2). Prove the identity cos 3θ ≡ 4 cos^3 θ - 3 cos θ 3). Solve the following giving answer in radian in the range 0 to 2π: a). cos 2θ = sin θ b). sin 2θ - 1= cos 2θ NOTE: to clarify θ = theta cos^3 = cos cubed
Question asked by: Marxxs

Asked on: 03 Mar 2010

Did you ever get the answer to this?

Looks like there are no maths experts around at the moment!
By: knowitall
Replied at: 10 Apr 2010
Rate Answer

Comment or provide your answer to this question
No comments have been added to this question "Prove Indentities".

Ask a New Question

Find out more about Maths

Maths Questions and Answers

algebra Questions and Answers

Next question: if a/b=c/d the proof that ac+bd/ac-bd=a2+b2/a2-b2(Square)

Become a Member! It's Free >>>

Share on Facebook: On Twitter: Twitter Tweet this!

Question Keywords

indentities prove

More Questions:

What Is A Frequency?
Consecutive Numbers
4% Of 73
Abandon Rate
Number Sequence