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Topic: Trigonometry - Proving trigonometric identities
Replies: 9   Last Post: Dec 21, 2004 12:09 AM

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Jason

Posts: 31
Registered: 12/6/04
Trigonometry - Proving trigonometric identities
Posted: Nov 16, 2004 5:29 PM
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If I have a question:

Simplify:

tan x cos x
---------- + -------------
1 - tan x sin x - cos x


If I am required to simplify and not prove as I don't know the answer
to this equation, is there a standard way to commence simplifying the
equation and is there a difined time to stop? Each part of the
equation, tan x, cos x, 1 - tan x all can be changed which ones do you
change and when do you stop. You can continually change and rearrange
and then change again your new answer. I have trouble knowing where to
stop if I don't have a defined identity to prove.

Hopefully you will be able to understand what I mean!

Thank you

Jason

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